Finding the Fourth Proportional to 121,545.10, 182,425.65 and 71,562.70
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Solution
The fourth proportional to 121,545.10, 182,425.65 and 71,562.70 is: 107,407.64
Step by Step Solution
- Step 1: Write the proportion equation
121,545.10 : 182,425.65 = 71,562.70 : x - Step 2: Convert to fraction form
121,545.10/182,425.65 = 71,562.70/x - Step 3: Cross multiply
121,545.10x = 182,425.65 × 71,562.70 - Step 4: Simplify right side
121,545.10x = 13,054,872,063.26 - Step 5: Solve for x
x = 13,054,872,063.26/121,545.10 - Step 6: Final answer
x = 107,407.64
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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.