Home / 154,175.65-231,158.22-82,139.33

Finding the Fourth Proportional to 154,175.65, 231,158.22 and 82,139.33

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Solution

The fourth proportional to 154,175.65, 231,158.22 and 82,139.33 is: 123,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,175.65 : 231,158.22 = 82,139.33 : x
  2. Step 2: Convert to fraction form
    154,175.65/231,158.22 = 82,139.33/x
  3. Step 3: Cross multiply
    154,175.65x = 231,158.22 × 82,139.33
  4. Step 4: Simplify right side
    154,175.65x = 18,987,181,314.79
  5. Step 5: Solve for x
    x = 18,987,181,314.79/154,175.65
  6. Step 6: Final answer
    x = 123,152.92

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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.