Home / 129,590.44-178,766.62-89,234.20

Finding the Fourth Proportional to 129,590.44, 178,766.62 and 89,234.20

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Solution

The fourth proportional to 129,590.44, 178,766.62 and 89,234.20 is: 123,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,590.44 : 178,766.62 = 89,234.20 : x
  2. Step 2: Convert to fraction form
    129,590.44/178,766.62 = 89,234.20/x
  3. Step 3: Cross multiply
    129,590.44x = 178,766.62 × 89,234.20
  4. Step 4: Simplify right side
    129,590.44x = 15,952,096,322.40
  5. Step 5: Solve for x
    x = 15,952,096,322.40/129,590.44
  6. Step 6: Final answer
    x = 123,096.24

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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.