Home / 129,865.53-194,650.65-54,938.91

Finding the Fourth Proportional to 129,865.53, 194,650.65 and 54,938.91

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Solution

The fourth proportional to 129,865.53, 194,650.65 and 54,938.91 is: 82,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865.53 : 194,650.65 = 54,938.91 : x
  2. Step 2: Convert to fraction form
    129,865.53/194,650.65 = 54,938.91/x
  3. Step 3: Cross multiply
    129,865.53x = 194,650.65 × 54,938.91
  4. Step 4: Simplify right side
    129,865.53x = 10,693,894,541.79
  5. Step 5: Solve for x
    x = 10,693,894,541.79/129,865.53
  6. Step 6: Final answer
    x = 82,345.90

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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.