Finding the Fourth Proportional to 137,957.76, 206,930.88 and 39,461.76
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Solution
The fourth proportional to 137,957.76, 206,930.88 and 39,461.76 is: 59,190.99
Step by Step Solution
- Step 1: Write the proportion equation
137,957.76 : 206,930.88 = 39,461.76 : x - Step 2: Convert to fraction form
137,957.76/206,930.88 = 39,461.76/x - Step 3: Cross multiply
137,957.76x = 206,930.88 × 39,461.76 - Step 4: Simplify right side
137,957.76x = 8,165,856,723.15 - Step 5: Solve for x
x = 8,165,856,723.15/137,957.76 - Step 6: Final answer
x = 59,190.99
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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.