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Finding the Fourth Proportional to 135,934.56, 203,902.56 and 42,432.48

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Solution

The fourth proportional to 135,934.56, 203,902.56 and 42,432.48 is: 63,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,934.56 : 203,902.56 = 42,432.48 : x
  2. Step 2: Convert to fraction form
    135,934.56/203,902.56 = 42,432.48/x
  3. Step 3: Cross multiply
    135,934.56x = 203,902.56 × 42,432.48
  4. Step 4: Simplify right side
    135,934.56x = 8,652,091,299.15
  5. Step 5: Solve for x
    x = 8,652,091,299.15/135,934.56
  6. Step 6: Final answer
    x = 63,648.94

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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.