Home / 198,918.29-274,514.19-108,281.72

Finding the Fourth Proportional to 198,918.29, 274,514.19 and 108,281.72

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Solution

The fourth proportional to 198,918.29, 274,514.19 and 108,281.72 is: 149,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,918.29 : 274,514.19 = 108,281.72 : x
  2. Step 2: Convert to fraction form
    198,918.29/274,514.19 = 108,281.72/x
  3. Step 3: Cross multiply
    198,918.29x = 274,514.19 × 108,281.72
  4. Step 4: Simplify right side
    198,918.29x = 29,724,868,657.61
  5. Step 5: Solve for x
    x = 29,724,868,657.61/198,918.29
  6. Step 6: Final answer
    x = 149,432.56

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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.