Home / 424,132.11-636,063.17-139,769.66

Finding the Fourth Proportional to 424,132.11, 636,063.17 and 139,769.66

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Solution

The fourth proportional to 424,132.11, 636,063.17 and 139,769.66 is: 209,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,132.11 : 636,063.17 = 139,769.66 : x
  2. Step 2: Convert to fraction form
    424,132.11/636,063.17 = 139,769.66/x
  3. Step 3: Cross multiply
    424,132.11x = 636,063.17 × 139,769.66
  4. Step 4: Simplify right side
    424,132.11x = 88,902,333,900.73
  5. Step 5: Solve for x
    x = 88,902,333,900.73/424,132.11
  6. Step 6: Final answer
    x = 209,610.01

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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.