Home / 154,537.38-231,839.37-47,919.20

Finding the Fourth Proportional to 154,537.38, 231,839.37 and 47,919.20

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Solution

The fourth proportional to 154,537.38, 231,839.37 and 47,919.20 is: 71,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,537.38 : 231,839.37 = 47,919.20 : x
  2. Step 2: Convert to fraction form
    154,537.38/231,839.37 = 47,919.20/x
  3. Step 3: Cross multiply
    154,537.38x = 231,839.37 × 47,919.20
  4. Step 4: Simplify right side
    154,537.38x = 11,109,555,979.71
  5. Step 5: Solve for x
    x = 11,109,555,979.71/154,537.38
  6. Step 6: Final answer
    x = 71,889.12

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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.