Home / 135,845.34-203,755.05-42,351.90

Finding the Fourth Proportional to 135,845.34, 203,755.05 and 42,351.90

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Solution

The fourth proportional to 135,845.34, 203,755.05 and 42,351.90 is: 63,523.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,845.34 : 203,755.05 = 42,351.90 : x
  2. Step 2: Convert to fraction form
    135,845.34/203,755.05 = 42,351.90/x
  3. Step 3: Cross multiply
    135,845.34x = 203,755.05 × 42,351.90
  4. Step 4: Simplify right side
    135,845.34x = 8,629,413,502.10
  5. Step 5: Solve for x
    x = 8,629,413,502.10/135,845.34
  6. Step 6: Final answer
    x = 63,523.81

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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.