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Finding the Fourth Proportional to 135,612, 203,418 and 52,506

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Solution

The fourth proportional to 135,612, 203,418 and 52,506 is: 78,759

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,612 : 203,418 = 52,506 : x
  2. Step 2: Convert to fraction form
    135,612/203,418 = 52,506/x
  3. Step 3: Cross multiply
    135,612x = 203,418 × 52,506
  4. Step 4: Simplify right side
    135,612x = 10,680,665,508
  5. Step 5: Solve for x
    x = 10,680,665,508/135,612
  6. Step 6: Final answer
    x = 78,759

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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.