Home / 135,786.92-187,397.13-75,356.46

Finding the Fourth Proportional to 135,786.92, 187,397.13 and 75,356.46

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Solution

The fourth proportional to 135,786.92, 187,397.13 and 75,356.46 is: 103,998.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,786.92 : 187,397.13 = 75,356.46 : x
  2. Step 2: Convert to fraction form
    135,786.92/187,397.13 = 75,356.46/x
  3. Step 3: Cross multiply
    135,786.92x = 187,397.13 × 75,356.46
  4. Step 4: Simplify right side
    135,786.92x = 14,121,584,330.96
  5. Step 5: Solve for x
    x = 14,121,584,330.96/135,786.92
  6. Step 6: Final answer
    x = 103,998.12

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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.