Home / 129,589.44-178,765.24-89,233.20

Finding the Fourth Proportional to 129,589.44, 178,765.24 and 89,233.20

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Solution

The fourth proportional to 129,589.44, 178,765.24 and 89,233.20 is: 123,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,589.44 : 178,765.24 = 89,233.20 : x
  2. Step 2: Convert to fraction form
    129,589.44/178,765.24 = 89,233.20/x
  3. Step 3: Cross multiply
    129,589.44x = 178,765.24 × 89,233.20
  4. Step 4: Simplify right side
    129,589.44x = 15,951,794,413.97
  5. Step 5: Solve for x
    x = 15,951,794,413.97/129,589.44
  6. Step 6: Final answer
    x = 123,094.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.