Home / 187,801.39-281,612.98-108,939.79

Finding the Fourth Proportional to 187,801.39, 281,612.98 and 108,939.79

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Solution

The fourth proportional to 187,801.39, 281,612.98 and 108,939.79 is: 163,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,801.39 : 281,612.98 = 108,939.79 : x
  2. Step 2: Convert to fraction form
    187,801.39/281,612.98 = 108,939.79/x
  3. Step 3: Cross multiply
    187,801.39x = 281,612.98 × 108,939.79
  4. Step 4: Simplify right side
    187,801.39x = 30,678,858,902.47
  5. Step 5: Solve for x
    x = 30,678,858,902.47/187,801.39
  6. Step 6: Final answer
    x = 163,358.00

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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.