Finding the Fourth Proportional to 157,490.11, 236,237.60 and 87,812.29
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Solution
The fourth proportional to 157,490.11, 236,237.60 and 87,812.29 is: 131,719.79
Step by Step Solution
- Step 1: Write the proportion equation
157,490.11 : 236,237.60 = 87,812.29 : x - Step 2: Convert to fraction form
157,490.11/236,237.60 = 87,812.29/x - Step 3: Cross multiply
157,490.11x = 236,237.60 × 87,812.29 - Step 4: Simplify right side
157,490.11x = 20,744,564,640.10 - Step 5: Solve for x
x = 20,744,564,640.10/157,490.11 - Step 6: Final answer
x = 131,719.79
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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.