Home / 198,795.76-274,331.12-108,149.20

Finding the Fourth Proportional to 198,795.76, 274,331.12 and 108,149.20

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Solution

The fourth proportional to 198,795.76, 274,331.12 and 108,149.20 is: 149,242.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,795.76 : 274,331.12 = 108,149.20 : x
  2. Step 2: Convert to fraction form
    198,795.76/274,331.12 = 108,149.20/x
  3. Step 3: Cross multiply
    198,795.76x = 274,331.12 × 108,149.20
  4. Step 4: Simplify right side
    198,795.76x = 29,668,691,163.10
  5. Step 5: Solve for x
    x = 29,668,691,163.10/198,795.76
  6. Step 6: Final answer
    x = 149,242.07

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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.