Home / 129,680.33-194,541.24-54,801.20

Finding the Fourth Proportional to 129,680.33, 194,541.24 and 54,801.20

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Solution

The fourth proportional to 129,680.33, 194,541.24 and 54,801.20 is: 82,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,680.33 : 194,541.24 = 54,801.20 : x
  2. Step 2: Convert to fraction form
    129,680.33/194,541.24 = 54,801.20/x
  3. Step 3: Cross multiply
    129,680.33x = 194,541.24 × 54,801.20
  4. Step 4: Simplify right side
    129,680.33x = 10,661,093,401.49
  5. Step 5: Solve for x
    x = 10,661,093,401.49/129,680.33
  6. Step 6: Final answer
    x = 82,210.57

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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.