Home / 154,170.80-231,150.97-82,134.48

Finding the Fourth Proportional to 154,170.80, 231,150.97 and 82,134.48

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Solution

The fourth proportional to 154,170.80, 231,150.97 and 82,134.48 is: 123,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,170.80 : 231,150.97 = 82,134.48 : x
  2. Step 2: Convert to fraction form
    154,170.80/231,150.97 = 82,134.48/x
  3. Step 3: Cross multiply
    154,170.80x = 231,150.97 × 82,134.48
  4. Step 4: Simplify right side
    154,170.80x = 18,985,465,383.93
  5. Step 5: Solve for x
    x = 18,985,465,383.93/154,170.80
  6. Step 6: Final answer
    x = 123,145.66

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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.