Home / 129,979.62-194,982.28-54,062.58

Finding the Fourth Proportional to 129,979.62, 194,982.28 and 54,062.58

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Solution

The fourth proportional to 129,979.62, 194,982.28 and 54,062.58 is: 81,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979.62 : 194,982.28 = 54,062.58 : x
  2. Step 2: Convert to fraction form
    129,979.62/194,982.28 = 54,062.58/x
  3. Step 3: Cross multiply
    129,979.62x = 194,982.28 × 54,062.58
  4. Step 4: Simplify right side
    129,979.62x = 10,541,245,111.08
  5. Step 5: Solve for x
    x = 10,541,245,111.08/129,979.62
  6. Step 6: Final answer
    x = 81,099.21

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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.