Home / 135,375.39-203,249.42-68,860.49

Finding the Fourth Proportional to 135,375.39, 203,249.42 and 68,860.49

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Solution

The fourth proportional to 135,375.39, 203,249.42 and 68,860.49 is: 103,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,375.39 : 203,249.42 = 68,860.49 : x
  2. Step 2: Convert to fraction form
    135,375.39/203,249.42 = 68,860.49/x
  3. Step 3: Cross multiply
    135,375.39x = 203,249.42 × 68,860.49
  4. Step 4: Simplify right side
    135,375.39x = 13,995,853,292.87
  5. Step 5: Solve for x
    x = 13,995,853,292.87/135,375.39
  6. Step 6: Final answer
    x = 103,385.51

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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.