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Finding the Fourth Proportional to 187,499.93, 281,339.42 and 87,645.61

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Solution

The fourth proportional to 187,499.93, 281,339.42 and 87,645.61 is: 131,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,499.93 : 281,339.42 = 87,645.61 : x
  2. Step 2: Convert to fraction form
    187,499.93/281,339.42 = 87,645.61/x
  3. Step 3: Cross multiply
    187,499.93x = 281,339.42 × 87,645.61
  4. Step 4: Simplify right side
    187,499.93x = 24,658,164,996.39
  5. Step 5: Solve for x
    x = 24,658,164,996.39/187,499.93
  6. Step 6: Final answer
    x = 131,510.27

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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.