Finding the Fourth Proportional to 100,098.29, 138,121.97 and 59,803.49
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Solution
The fourth proportional to 100,098.29, 138,121.97 and 59,803.49 is: 82,520.64
Step by Step Solution
- Step 1: Write the proportion equation
100,098.29 : 138,121.97 = 59,803.49 : x - Step 2: Convert to fraction form
100,098.29/138,121.97 = 59,803.49/x - Step 3: Cross multiply
100,098.29x = 138,121.97 × 59,803.49 - Step 4: Simplify right side
100,098.29x = 8,260,174,862.05 - Step 5: Solve for x
x = 8,260,174,862.05/100,098.29 - Step 6: Final answer
x = 82,520.64
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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.