Home / 187,961.54-281,872.04-75,603.78

Finding the Fourth Proportional to 187,961.54, 281,872.04 and 75,603.78

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Solution

The fourth proportional to 187,961.54, 281,872.04 and 75,603.78 is: 113,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,961.54 : 281,872.04 = 75,603.78 : x
  2. Step 2: Convert to fraction form
    187,961.54/281,872.04 = 75,603.78/x
  3. Step 3: Cross multiply
    187,961.54x = 281,872.04 × 75,603.78
  4. Step 4: Simplify right side
    187,961.54x = 21,310,591,322.29
  5. Step 5: Solve for x
    x = 21,310,591,322.29/187,961.54
  6. Step 6: Final answer
    x = 113,377.41

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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.