Home / 187,439.52-281,127.69-80,794.11

Finding the Fourth Proportional to 187,439.52, 281,127.69 and 80,794.11

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Solution

The fourth proportional to 187,439.52, 281,127.69 and 80,794.11 is: 121,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,439.52 : 281,127.69 = 80,794.11 : x
  2. Step 2: Convert to fraction form
    187,439.52/281,127.69 = 80,794.11/x
  3. Step 3: Cross multiply
    187,439.52x = 281,127.69 × 80,794.11
  4. Step 4: Simplify right side
    187,439.52x = 22,713,461,509.91
  5. Step 5: Solve for x
    x = 22,713,461,509.91/187,439.52
  6. Step 6: Final answer
    x = 121,177.55

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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.