Home / 187,839.78-281,805.75-54,721.26

Finding the Fourth Proportional to 187,839.78, 281,805.75 and 54,721.26

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Solution

The fourth proportional to 187,839.78, 281,805.75 and 54,721.26 is: 82,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.78 : 281,805.75 = 54,721.26 : x
  2. Step 2: Convert to fraction form
    187,839.78/281,805.75 = 54,721.26/x
  3. Step 3: Cross multiply
    187,839.78x = 281,805.75 × 54,721.26
  4. Step 4: Simplify right side
    187,839.78x = 15,420,765,715.25
  5. Step 5: Solve for x
    x = 15,420,765,715.25/187,839.78
  6. Step 6: Final answer
    x = 82,095.31

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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.