Finding the Fourth Proportional to 121,691.40, 182,557.80 and 37,449.65
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Solution
The fourth proportional to 121,691.40, 182,557.80 and 37,449.65 is: 56,180.84
Step by Step Solution
- Step 1: Write the proportion equation
121,691.40 : 182,557.80 = 37,449.65 : x - Step 2: Convert to fraction form
121,691.40/182,557.80 = 37,449.65/x - Step 3: Cross multiply
121,691.40x = 182,557.80 × 37,449.65 - Step 4: Simplify right side
121,691.40x = 6,836,724,801.98 - Step 5: Solve for x
x = 6,836,724,801.98/121,691.40 - Step 6: Final answer
x = 56,180.84
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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.