Finding the Fourth Proportional to 136,678.87, 205,020.14 and 47,934.97
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Solution
The fourth proportional to 136,678.87, 205,020.14 and 47,934.97 is: 71,903.09
Step by Step Solution
- Step 1: Write the proportion equation
136,678.87 : 205,020.14 = 47,934.97 : x - Step 2: Convert to fraction form
136,678.87/205,020.14 = 47,934.97/x - Step 3: Cross multiply
136,678.87x = 205,020.14 × 47,934.97 - Step 4: Simplify right side
136,678.87x = 9,827,633,508.07 - Step 5: Solve for x
x = 9,827,633,508.07/136,678.87 - Step 6: Final answer
x = 71,903.09
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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.