Home / 187,813.90-281,781.06-54,702.15

Finding the Fourth Proportional to 187,813.90, 281,781.06 and 54,702.15

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Solution

The fourth proportional to 187,813.90, 281,781.06 and 54,702.15 is: 82,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,813.90 : 281,781.06 = 54,702.15 : x
  2. Step 2: Convert to fraction form
    187,813.90/281,781.06 = 54,702.15/x
  3. Step 3: Cross multiply
    187,813.90x = 281,781.06 × 54,702.15
  4. Step 4: Simplify right side
    187,813.90x = 15,414,029,811.28
  5. Step 5: Solve for x
    x = 15,414,029,811.28/187,813.90
  6. Step 6: Final answer
    x = 82,070.76

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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.