Home / 133,691.66-184,471.07-76,304.78

Finding the Fourth Proportional to 133,691.66, 184,471.07 and 76,304.78

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Solution

The fourth proportional to 133,691.66, 184,471.07 and 76,304.78 is: 105,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,691.66 : 184,471.07 = 76,304.78 : x
  2. Step 2: Convert to fraction form
    133,691.66/184,471.07 = 76,304.78/x
  3. Step 3: Cross multiply
    133,691.66x = 184,471.07 × 76,304.78
  4. Step 4: Simplify right side
    133,691.66x = 14,076,025,267.47
  5. Step 5: Solve for x
    x = 14,076,025,267.47/133,691.66
  6. Step 6: Final answer
    x = 105,287.23

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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.