Is there any way to change the right sidebar width so that on one page it is x width and on another a different width to accommodate the different widths of content?

Long distance swim site On this site I'd like the width of Right to be 150 and on the records page I'd like it to be 200.

Wordpress 3.6 Athualpa 3.7.12

add to CSS inserts

body.page-id-125 col.three {width:200px;}

I'm in Atahualpa, col.three is not in there.
I think it should be the following but it does not work.

body.page-id-125 td#right-inner {
width: 100px;
!important;
}

body.page-id-125 td#right {
width: 200px;
!important;
}

Typo, it's .colthree

Thanks,
.colthree works great!

So it looks like Left=one right=Three the center column=two
I can't figure out left-inner or right-inner (need this)
I tried four five and six.

body.page-id-4 .colone {width:50px;!important;}
body.page-id-4 .colthree {width:200px;!important;}

its
left = colone
left-inner = colone-inner
middle = coltwo
right-inner = colthree-inner
right = colthree

THANKS! Wow! so much fun to be had now!