Home / 135,734.48-203,614.68-42,215.12

Finding the Fourth Proportional to 135,734.48, 203,614.68 and 42,215.12

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Solution

The fourth proportional to 135,734.48, 203,614.68 and 42,215.12 is: 63,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,734.48 : 203,614.68 = 42,215.12 : x
  2. Step 2: Convert to fraction form
    135,734.48/203,614.68 = 42,215.12/x
  3. Step 3: Cross multiply
    135,734.48x = 203,614.68 × 42,215.12
  4. Step 4: Simplify right side
    135,734.48x = 8,595,618,149.96
  5. Step 5: Solve for x
    x = 8,595,618,149.96/135,734.48
  6. Step 6: Final answer
    x = 63,326.71

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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.