FWIW, 110 psi rear is pretty close if OP weighs 230 lbs and has a 30 lb bike. Not sure how much OP weighs, or what style bike he's on.
P=((600*L)/(W^2))+(.75*W)-25
Is the formula I used. P is pressure in psi, L is wheel load in pounds, and W is tire width in mm. Most bikes have 60-65% of the total rider + bike weight on the rear wheel, so use the formula to set your rear wheel psi, then use ~85% of that pressure for your front wheel.