Home / 135,221.86-186,593.62-74,791.20

Finding the Fourth Proportional to 135,221.86, 186,593.62 and 74,791.20

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Solution

The fourth proportional to 135,221.86, 186,593.62 and 74,791.20 is: 103,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,221.86 : 186,593.62 = 74,791.20 : x
  2. Step 2: Convert to fraction form
    135,221.86/186,593.62 = 74,791.20/x
  3. Step 3: Cross multiply
    135,221.86x = 186,593.62 × 74,791.20
  4. Step 4: Simplify right side
    135,221.86x = 13,955,561,545.36
  5. Step 5: Solve for x
    x = 13,955,561,545.36/135,221.86
  6. Step 6: Final answer
    x = 103,204.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.