Home / 138,213.03-207,223.36-61,234.23

Finding the Fourth Proportional to 138,213.03, 207,223.36 and 61,234.23

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Solution

The fourth proportional to 138,213.03, 207,223.36 and 61,234.23 is: 91,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,213.03 : 207,223.36 = 61,234.23 : x
  2. Step 2: Convert to fraction form
    138,213.03/207,223.36 = 61,234.23/x
  3. Step 3: Cross multiply
    138,213.03x = 207,223.36 × 61,234.23
  4. Step 4: Simplify right side
    138,213.03x = 12,689,162,581.44
  5. Step 5: Solve for x
    x = 12,689,162,581.44/138,213.03
  6. Step 6: Final answer
    x = 91,808.73

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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.