Home / 129,473.92-194,286.20-54,589.40

Finding the Fourth Proportional to 129,473.92, 194,286.20 and 54,589.40

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Solution

The fourth proportional to 129,473.92, 194,286.20 and 54,589.40 is: 81,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,473.92 : 194,286.20 = 54,589.40 : x
  2. Step 2: Convert to fraction form
    129,473.92/194,286.20 = 54,589.40/x
  3. Step 3: Cross multiply
    129,473.92x = 194,286.20 × 54,589.40
  4. Step 4: Simplify right side
    129,473.92x = 10,605,967,086.28
  5. Step 5: Solve for x
    x = 10,605,967,086.28/129,473.92
  6. Step 6: Final answer
    x = 81,915.86

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1.5x scale

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.