Home / 129,864.28-194,648.78-54,937.66

Finding the Fourth Proportional to 129,864.28, 194,648.78 and 54,937.66

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Solution

The fourth proportional to 129,864.28, 194,648.78 and 54,937.66 is: 82,344.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,864.28 : 194,648.78 = 54,937.66 : x
  2. Step 2: Convert to fraction form
    129,864.28/194,648.78 = 54,937.66/x
  3. Step 3: Cross multiply
    129,864.28x = 194,648.78 × 54,937.66
  4. Step 4: Simplify right side
    129,864.28x = 10,693,548,220.37
  5. Step 5: Solve for x
    x = 10,693,548,220.37/129,864.28
  6. Step 6: Final answer
    x = 82,344.03

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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.