The volume, V, of a rectangular prism is determined using the formula V=l⁢w⁢h, where l is the length, w is the width, and h is the height of the prism. Using this formula, what is the width of a rectangular prism that has a volume of 138 point 2 4 cubic inches, a height of 9 point 6 inches, and a length of 3 point 2 inches? Round to the nearest tenth.