Home / 154,131.38-231,243.68-109,239.56

Finding the Fourth Proportional to 154,131.38, 231,243.68 and 109,239.56

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Solution

The fourth proportional to 154,131.38, 231,243.68 and 109,239.56 is: 163,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,131.38 : 231,243.68 = 109,239.56 : x
  2. Step 2: Convert to fraction form
    154,131.38/231,243.68 = 109,239.56/x
  3. Step 3: Cross multiply
    154,131.38x = 231,243.68 × 109,239.56
  4. Step 4: Simplify right side
    154,131.38x = 25,260,957,855.98
  5. Step 5: Solve for x
    x = 25,260,957,855.98/154,131.38
  6. Step 6: Final answer
    x = 163,892.37

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1.5x scale

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.