Finding the Fourth Proportional to 157,323.96, 236,062.08 and 78,449.40
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Solution
The fourth proportional to 157,323.96, 236,062.08 and 78,449.40 is: 117,712.07
Step by Step Solution
- Step 1: Write the proportion equation
157,323.96 : 236,062.08 = 78,449.40 : x - Step 2: Convert to fraction form
157,323.96/236,062.08 = 78,449.40/x - Step 3: Cross multiply
157,323.96x = 236,062.08 × 78,449.40 - Step 4: Simplify right side
157,323.96x = 18,518,928,538.75 - Step 5: Solve for x
x = 18,518,928,538.75/157,323.96 - Step 6: Final answer
x = 117,712.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.