Home / 154,143.36-231,262.24-138,247.92

Finding the Fourth Proportional to 154,143.36, 231,262.24 and 138,247.92

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Solution

The fourth proportional to 154,143.36, 231,262.24 and 138,247.92 is: 207,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,143.36 : 231,262.24 = 138,247.92 : x
  2. Step 2: Convert to fraction form
    154,143.36/231,262.24 = 138,247.92/x
  3. Step 3: Cross multiply
    154,143.36x = 231,262.24 × 138,247.92
  4. Step 4: Simplify right side
    154,143.36x = 31,971,523,654.54
  5. Step 5: Solve for x
    x = 31,971,523,654.54/154,143.36
  6. Step 6: Final answer
    x = 207,414.21

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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.