Home / 137,872.36-206,864.86-49,142.76

Finding the Fourth Proportional to 137,872.36, 206,864.86 and 49,142.76

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Solution

The fourth proportional to 137,872.36, 206,864.86 and 49,142.76 is: 73,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,872.36 : 206,864.86 = 49,142.76 : x
  2. Step 2: Convert to fraction form
    137,872.36/206,864.86 = 49,142.76/x
  3. Step 3: Cross multiply
    137,872.36x = 206,864.86 × 49,142.76
  4. Step 4: Simplify right side
    137,872.36x = 10,165,910,167.41
  5. Step 5: Solve for x
    x = 10,165,910,167.41/137,872.36
  6. Step 6: Final answer
    x = 73,734.21

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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.