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Finding the Fourth Proportional to 143,226.60, 214,839.90 and 130,104.60

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Solution

The fourth proportional to 143,226.60, 214,839.90 and 130,104.60 is: 195,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.60 : 214,839.90 = 130,104.60 : x
  2. Step 2: Convert to fraction form
    143,226.60/214,839.90 = 130,104.60/x
  3. Step 3: Cross multiply
    143,226.60x = 214,839.90 × 130,104.60
  4. Step 4: Simplify right side
    143,226.60x = 27,951,659,253.54
  5. Step 5: Solve for x
    x = 27,951,659,253.54/143,226.60
  6. Step 6: Final answer
    x = 195,156.90

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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.