111.18=pir^2

Solution for 111.18=pir^2 equation:

Simplifying
111.18 = pir2

Solving
111.18 = ipr2

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '-1ipr2' to each side of the equation.
111.18 + -1ipr2 = ipr2 + -1ipr2

Combine like terms: ipr2 + -1ipr2 = 0
111.18 + -1ipr2 = 0

Add '-111.18' to each side of the equation.
111.18 + -111.18 + -1ipr2 = 0 + -111.18

Combine like terms: 111.18 + -111.18 = 0.00
0.00 + -1ipr2 = 0 + -111.18
-1ipr2 = 0 + -111.18

Combine like terms: 0 + -111.18 = -111.18
-1ipr2 = -111.18

Divide each side by '-1pr2'.
i = 111.18p-1r-2

Simplifying
i = 111.18p-1r-2