Home / 231,747.20-347,627.28-81,966.32

Finding the Fourth Proportional to 231,747.20, 347,627.28 and 81,966.32

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Solution

The fourth proportional to 231,747.20, 347,627.28 and 81,966.32 is: 122,951.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,747.20 : 347,627.28 = 81,966.32 : x
  2. Step 2: Convert to fraction form
    231,747.20/347,627.28 = 81,966.32/x
  3. Step 3: Cross multiply
    231,747.20x = 347,627.28 × 81,966.32
  4. Step 4: Simplify right side
    231,747.20x = 28,493,728,873.21
  5. Step 5: Solve for x
    x = 28,493,728,873.21/231,747.20
  6. Step 6: Final answer
    x = 122,951.77

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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.