Home / 187,702.72-281,357.15-87,778.69

Finding the Fourth Proportional to 187,702.72, 281,357.15 and 87,778.69

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Solution

The fourth proportional to 187,702.72, 281,357.15 and 87,778.69 is: 131,575.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,702.72 : 281,357.15 = 87,778.69 : x
  2. Step 2: Convert to fraction form
    187,702.72/281,357.15 = 87,778.69/x
  3. Step 3: Cross multiply
    187,702.72x = 281,357.15 × 87,778.69
  4. Step 4: Simplify right side
    187,702.72x = 24,697,160,906.85
  5. Step 5: Solve for x
    x = 24,697,160,906.85/187,702.72
  6. Step 6: Final answer
    x = 131,575.94

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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.