Home / 131,489.40-197,234.10-47,289.90

Finding the Fourth Proportional to 131,489.40, 197,234.10 and 47,289.90

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Solution

The fourth proportional to 131,489.40, 197,234.10 and 47,289.90 is: 70,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,489.40 : 197,234.10 = 47,289.90 : x
  2. Step 2: Convert to fraction form
    131,489.40/197,234.10 = 47,289.90/x
  3. Step 3: Cross multiply
    131,489.40x = 197,234.10 × 47,289.90
  4. Step 4: Simplify right side
    131,489.40x = 9,327,180,865.59
  5. Step 5: Solve for x
    x = 9,327,180,865.59/131,489.40
  6. Step 6: Final answer
    x = 70,934.85

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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.