Home / 129,694.70-194,434.05-54,872.30

Finding the Fourth Proportional to 129,694.70, 194,434.05 and 54,872.30

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Solution

The fourth proportional to 129,694.70, 194,434.05 and 54,872.30 is: 82,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,694.70 : 194,434.05 = 54,872.30 : x
  2. Step 2: Convert to fraction form
    129,694.70/194,434.05 = 54,872.30/x
  3. Step 3: Cross multiply
    129,694.70x = 194,434.05 × 54,872.30
  4. Step 4: Simplify right side
    129,694.70x = 10,669,043,521.82
  5. Step 5: Solve for x
    x = 10,669,043,521.82/129,694.70
  6. Step 6: Final answer
    x = 82,262.76

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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.