Home / 187,817.76-281,911.12-137,755.31

Finding the Fourth Proportional to 187,817.76, 281,911.12 and 137,755.31

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Solution

The fourth proportional to 187,817.76, 281,911.12 and 137,755.31 is: 206,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,817.76 : 281,911.12 = 137,755.31 : x
  2. Step 2: Convert to fraction form
    187,817.76/281,911.12 = 137,755.31/x
  3. Step 3: Cross multiply
    187,817.76x = 281,911.12 × 137,755.31
  4. Step 4: Simplify right side
    187,817.76x = 38,834,751,974.10
  5. Step 5: Solve for x
    x = 38,834,751,974.10/187,817.76
  6. Step 6: Final answer
    x = 206,768.26

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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.