Finding the Fourth Proportional to 139,624.26, 207,857.11 and 138,793.88
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Solution
The fourth proportional to 139,624.26, 207,857.11 and 138,793.88 is: 206,620.92
Step by Step Solution
- Step 1: Write the proportion equation
139,624.26 : 207,857.11 = 138,793.88 : x - Step 2: Convert to fraction form
139,624.26/207,857.11 = 138,793.88/x - Step 3: Cross multiply
139,624.26x = 207,857.11 × 138,793.88 - Step 4: Simplify right side
139,624.26x = 28,849,293,396.22 - Step 5: Solve for x
x = 28,849,293,396.22/139,624.26 - Step 6: Final answer
x = 206,620.92
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.