Home / 124,712.31-187,086.92-45,820.39

Finding the Fourth Proportional to 124,712.31, 187,086.92 and 45,820.39

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Solution

The fourth proportional to 124,712.31, 187,086.92 and 45,820.39 is: 68,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,712.31 : 187,086.92 = 45,820.39 : x
  2. Step 2: Convert to fraction form
    124,712.31/187,086.92 = 45,820.39/x
  3. Step 3: Cross multiply
    124,712.31x = 187,086.92 × 45,820.39
  4. Step 4: Simplify right side
    124,712.31x = 8,572,394,473.76
  5. Step 5: Solve for x
    x = 8,572,394,473.76/124,712.31
  6. Step 6: Final answer
    x = 68,737.36

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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.