Home / 198,257.38-297,681.30-80,159.38

Finding the Fourth Proportional to 198,257.38, 297,681.30 and 80,159.38

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Solution

The fourth proportional to 198,257.38, 297,681.30 and 80,159.38 is: 120,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,257.38 : 297,681.30 = 80,159.38 : x
  2. Step 2: Convert to fraction form
    198,257.38/297,681.30 = 80,159.38/x
  3. Step 3: Cross multiply
    198,257.38x = 297,681.30 × 80,159.38
  4. Step 4: Simplify right side
    198,257.38x = 23,861,948,445.59
  5. Step 5: Solve for x
    x = 23,861,948,445.59/198,257.38
  6. Step 6: Final answer
    x = 120,358.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.