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Finding the Fourth Proportional to 141,431.60, 212,142.60 and 36,251.60

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Solution

The fourth proportional to 141,431.60, 212,142.60 and 36,251.60 is: 54,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,431.60 : 212,142.60 = 36,251.60 : x
  2. Step 2: Convert to fraction form
    141,431.60/212,142.60 = 36,251.60/x
  3. Step 3: Cross multiply
    141,431.60x = 212,142.60 × 36,251.60
  4. Step 4: Simplify right side
    141,431.60x = 7,690,508,678.16
  5. Step 5: Solve for x
    x = 7,690,508,678.16/141,431.60
  6. Step 6: Final answer
    x = 54,376.17

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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.