Home / 187,129.62-280,754.37-67,105.71

Finding the Fourth Proportional to 187,129.62, 280,754.37 and 67,105.71

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Solution

The fourth proportional to 187,129.62, 280,754.37 and 67,105.71 is: 100,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,129.62 : 280,754.37 = 67,105.71 : x
  2. Step 2: Convert to fraction form
    187,129.62/280,754.37 = 67,105.71/x
  3. Step 3: Cross multiply
    187,129.62x = 280,754.37 × 67,105.71
  4. Step 4: Simplify right side
    187,129.62x = 18,840,221,334.45
  5. Step 5: Solve for x
    x = 18,840,221,334.45/187,129.62
  6. Step 6: Final answer
    x = 100,680.06

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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.