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Finding the Fourth Proportional to 143,930.70, 215,877.15 and 44,100.90

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Solution

The fourth proportional to 143,930.70, 215,877.15 and 44,100.90 is: 66,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,930.70 : 215,877.15 = 44,100.90 : x
  2. Step 2: Convert to fraction form
    143,930.70/215,877.15 = 44,100.90/x
  3. Step 3: Cross multiply
    143,930.70x = 215,877.15 × 44,100.90
  4. Step 4: Simplify right side
    143,930.70x = 9,520,376,604.44
  5. Step 5: Solve for x
    x = 9,520,376,604.44/143,930.70
  6. Step 6: Final answer
    x = 66,145.56

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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.