Home / 129,694.20-194,433.30-54,871.80

Finding the Fourth Proportional to 129,694.20, 194,433.30 and 54,871.80

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Solution

The fourth proportional to 129,694.20, 194,433.30 and 54,871.80 is: 82,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,694.20 : 194,433.30 = 54,871.80 : x
  2. Step 2: Convert to fraction form
    129,694.20/194,433.30 = 54,871.80/x
  3. Step 3: Cross multiply
    129,694.20x = 194,433.30 × 54,871.80
  4. Step 4: Simplify right side
    129,694.20x = 10,668,905,150.94
  5. Step 5: Solve for x
    x = 10,668,905,150.94/129,694.20
  6. Step 6: Final answer
    x = 82,262.01

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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.