Home / 187,979.78-281,470.84-147,045.36

Finding the Fourth Proportional to 187,979.78, 281,470.84 and 147,045.36

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Solution

The fourth proportional to 187,979.78, 281,470.84 and 147,045.36 is: 220,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,979.78 : 281,470.84 = 147,045.36 : x
  2. Step 2: Convert to fraction form
    187,979.78/281,470.84 = 147,045.36/x
  3. Step 3: Cross multiply
    187,979.78x = 281,470.84 × 147,045.36
  4. Step 4: Simplify right side
    187,979.78x = 41,388,980,997.30
  5. Step 5: Solve for x
    x = 41,388,980,997.30/187,979.78
  6. Step 6: Final answer
    x = 220,177.84

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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.