Home / 198,042.38-296,932.32-71,666.18

Finding the Fourth Proportional to 198,042.38, 296,932.32 and 71,666.18

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Solution

The fourth proportional to 198,042.38, 296,932.32 and 71,666.18 is: 107,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,042.38 : 296,932.32 = 71,666.18 : x
  2. Step 2: Convert to fraction form
    198,042.38/296,932.32 = 71,666.18/x
  3. Step 3: Cross multiply
    198,042.38x = 296,932.32 × 71,666.18
  4. Step 4: Simplify right side
    198,042.38x = 21,280,006,104.02
  5. Step 5: Solve for x
    x = 21,280,006,104.02/198,042.38
  6. Step 6: Final answer
    x = 107,451.78

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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.