Home / 187,644.95-281,425.20-86,345.83

Finding the Fourth Proportional to 187,644.95, 281,425.20 and 86,345.83

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Solution

The fourth proportional to 187,644.95, 281,425.20 and 86,345.83 is: 129,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,644.95 : 281,425.20 = 86,345.83 : x
  2. Step 2: Convert to fraction form
    187,644.95/281,425.20 = 86,345.83/x
  3. Step 3: Cross multiply
    187,644.95x = 281,425.20 × 86,345.83
  4. Step 4: Simplify right side
    187,644.95x = 24,299,891,245.68
  5. Step 5: Solve for x
    x = 24,299,891,245.68/187,644.95
  6. Step 6: Final answer
    x = 129,499.31

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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.