Finding the Fourth Proportional to 121,121.10, 181,687.92 and 36,874.74
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Solution
The fourth proportional to 121,121.10, 181,687.92 and 36,874.74 is: 55,314.02
Step by Step Solution
- Step 1: Write the proportion equation
121,121.10 : 181,687.92 = 36,874.74 : x - Step 2: Convert to fraction form
121,121.10/181,687.92 = 36,874.74/x - Step 3: Cross multiply
121,121.10x = 181,687.92 × 36,874.74 - Step 4: Simplify right side
121,121.10x = 6,699,694,811.14 - Step 5: Solve for x
x = 6,699,694,811.14/121,121.10 - Step 6: Final answer
x = 55,314.02
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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.