(I flunked math in high school-- Sorry I feel like an idiot asking this!!)

Okay, I need to figure out the calories in a 1/4th cup shredded cheese.
The serving size on the back says that 1/3rd cup is 110.
So how do I figure out how much is in 1/4th instead of 1/3rd?

Thanks!

__________________ Mini Goal: 165 by Wedding Anniversary 3/3/2015