Home / 203,787.30-281,229.78-113,149.11

Finding the Fourth Proportional to 203,787.30, 281,229.78 and 113,149.11

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Solution

The fourth proportional to 203,787.30, 281,229.78 and 113,149.11 is: 156,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,787.30 : 281,229.78 = 113,149.11 : x
  2. Step 2: Convert to fraction form
    203,787.30/281,229.78 = 113,149.11/x
  3. Step 3: Cross multiply
    203,787.30x = 281,229.78 × 113,149.11
  4. Step 4: Simplify right side
    203,787.30x = 31,820,899,312.50
  5. Step 5: Solve for x
    x = 31,820,899,312.50/203,787.30
  6. Step 6: Final answer
    x = 156,147.61

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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.