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Finding the Fourth Proportional to 135,323.82, 202,930.23 and 40,520.61

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Solution

The fourth proportional to 135,323.82, 202,930.23 and 40,520.61 is: 60,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,323.82 : 202,930.23 = 40,520.61 : x
  2. Step 2: Convert to fraction form
    135,323.82/202,930.23 = 40,520.61/x
  3. Step 3: Cross multiply
    135,323.82x = 202,930.23 × 40,520.61
  4. Step 4: Simplify right side
    135,323.82x = 8,222,856,707.04
  5. Step 5: Solve for x
    x = 8,222,856,707.04/135,323.82
  6. Step 6: Final answer
    x = 60,764.30

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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.