Finding the Fourth Proportional to 121,248.18, 181,561.74 and 101,207.85
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Solution
The fourth proportional to 121,248.18, 181,561.74 and 101,207.85 is: 151,552.56
Step by Step Solution
- Step 1: Write the proportion equation
121,248.18 : 181,561.74 = 101,207.85 : x - Step 2: Convert to fraction form
121,248.18/181,561.74 = 101,207.85/x - Step 3: Cross multiply
121,248.18x = 181,561.74 × 101,207.85 - Step 4: Simplify right side
121,248.18x = 18,375,472,287.27 - Step 5: Solve for x
x = 18,375,472,287.27/121,248.18 - Step 6: Final answer
x = 151,552.56
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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.