Home / 198,929.20-274,525.78-108,287.76

Finding the Fourth Proportional to 198,929.20, 274,525.78 and 108,287.76

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Solution

The fourth proportional to 198,929.20, 274,525.78 and 108,287.76 is: 149,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,929.20 : 274,525.78 = 108,287.76 : x
  2. Step 2: Convert to fraction form
    198,929.20/274,525.78 = 108,287.76/x
  3. Step 3: Cross multiply
    198,929.20x = 274,525.78 × 108,287.76
  4. Step 4: Simplify right side
    198,929.20x = 29,727,781,778.45
  5. Step 5: Solve for x
    x = 29,727,781,778.45/198,929.20
  6. Step 6: Final answer
    x = 149,439.01

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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.