Home / 198,719.38-274,230.08-108,073.39

Finding the Fourth Proportional to 198,719.38, 274,230.08 and 108,073.39

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Solution

The fourth proportional to 198,719.38, 274,230.08 and 108,073.39 is: 149,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,719.38 : 274,230.08 = 108,073.39 : x
  2. Step 2: Convert to fraction form
    198,719.38/274,230.08 = 108,073.39/x
  3. Step 3: Cross multiply
    198,719.38x = 274,230.08 × 108,073.39
  4. Step 4: Simplify right side
    198,719.38x = 29,636,974,385.57
  5. Step 5: Solve for x
    x = 29,636,974,385.57/198,719.38
  6. Step 6: Final answer
    x = 149,139.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.