Finding the Fourth Proportional to 138,566.24, 207,766.04 and 54,225.80
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Solution
The fourth proportional to 138,566.24, 207,766.04 and 54,225.80 is: 81,306.09
Step by Step Solution
- Step 1: Write the proportion equation
138,566.24 : 207,766.04 = 54,225.80 : x - Step 2: Convert to fraction form
138,566.24/207,766.04 = 54,225.80/x - Step 3: Cross multiply
138,566.24x = 207,766.04 × 54,225.80 - Step 4: Simplify right side
138,566.24x = 11,266,279,731.83 - Step 5: Solve for x
x = 11,266,279,731.83/138,566.24 - Step 6: Final answer
x = 81,306.09
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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.