Home / 138,524.07-207,823.13-49,778.35

Finding the Fourth Proportional to 138,524.07, 207,823.13 and 49,778.35

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Solution

The fourth proportional to 138,524.07, 207,823.13 and 49,778.35 is: 74,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,524.07 : 207,823.13 = 49,778.35 : x
  2. Step 2: Convert to fraction form
    138,524.07/207,823.13 = 49,778.35/x
  3. Step 3: Cross multiply
    138,524.07x = 207,823.13 × 49,778.35
  4. Step 4: Simplify right side
    138,524.07x = 10,345,092,108.12
  5. Step 5: Solve for x
    x = 10,345,092,108.12/138,524.07
  6. Step 6: Final answer
    x = 74,680.83

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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.