Home / 198,679.28-274,175.91-108,035.30

Finding the Fourth Proportional to 198,679.28, 274,175.91 and 108,035.30

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Solution

The fourth proportional to 198,679.28, 274,175.91 and 108,035.30 is: 149,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,679.28 : 274,175.91 = 108,035.30 : x
  2. Step 2: Convert to fraction form
    198,679.28/274,175.91 = 108,035.30/x
  3. Step 3: Cross multiply
    198,679.28x = 274,175.91 × 108,035.30
  4. Step 4: Simplify right side
    198,679.28x = 29,620,676,689.62
  5. Step 5: Solve for x
    x = 29,620,676,689.62/198,679.28
  6. Step 6: Final answer
    x = 149,087.90

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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.