Finding the Fourth Proportional to 117,088.10, 161,585.49 and 71,757.32
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Solution
The fourth proportional to 117,088.10, 161,585.49 and 71,757.32 is: 99,027.50
Step by Step Solution
- Step 1: Write the proportion equation
117,088.10 : 161,585.49 = 71,757.32 : x - Step 2: Convert to fraction form
117,088.10/161,585.49 = 71,757.32/x - Step 3: Cross multiply
117,088.10x = 161,585.49 × 71,757.32 - Step 4: Simplify right side
117,088.10x = 11,594,941,806.05 - Step 5: Solve for x
x = 11,594,941,806.05/117,088.10 - Step 6: Final answer
x = 99,027.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.