Answer
7$\frac{1}{4}$ft
Work Step by Step
We have equally spaced 19 ceiling outlets, the number of blank spaces will be 18
The distance between the first and last outlet is 130$\frac{1}{2}$ ft
therefore the length of the distance between the ceiling outlet will be 130$\frac{1}{2}$ ft $\div$ 18
=$\frac{261}{2}$ $\div$ 18
= =$\frac{261}{2}$ x =$\frac{1}{18}$
==$\frac{29}{4}$
=7$\frac{1}{4}$ft