Home / 198,929.70-274,526.49-108,288.27

Finding the Fourth Proportional to 198,929.70, 274,526.49 and 108,288.27

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Solution

The fourth proportional to 198,929.70, 274,526.49 and 108,288.27 is: 149,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,929.70 : 274,526.49 = 108,288.27 : x
  2. Step 2: Convert to fraction form
    198,929.70/274,526.49 = 108,288.27/x
  3. Step 3: Cross multiply
    198,929.70x = 274,526.49 × 108,288.27
  4. Step 4: Simplify right side
    198,929.70x = 29,727,996,757.20
  5. Step 5: Solve for x
    x = 29,727,996,757.20/198,929.70
  6. Step 6: Final answer
    x = 149,439.71

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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.