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Finding the Fourth Proportional to 143,115.20, 214,672.80 and 36,498.95

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Solution

The fourth proportional to 143,115.20, 214,672.80 and 36,498.95 is: 54,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,115.20 : 214,672.80 = 36,498.95 : x
  2. Step 2: Convert to fraction form
    143,115.20/214,672.80 = 36,498.95/x
  3. Step 3: Cross multiply
    143,115.20x = 214,672.80 × 36,498.95
  4. Step 4: Simplify right side
    143,115.20x = 7,835,331,793.56
  5. Step 5: Solve for x
    x = 7,835,331,793.56/143,115.20
  6. Step 6: Final answer
    x = 54,748.43

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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.