Home / 154,057.20-231,323.40-84,073.20

Finding the Fourth Proportional to 154,057.20, 231,323.40 and 84,073.20

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Solution

The fourth proportional to 154,057.20, 231,323.40 and 84,073.20 is: 126,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,057.20 : 231,323.40 = 84,073.20 : x
  2. Step 2: Convert to fraction form
    154,057.20/231,323.40 = 84,073.20/x
  3. Step 3: Cross multiply
    154,057.20x = 231,323.40 × 84,073.20
  4. Step 4: Simplify right side
    154,057.20x = 19,448,098,472.88
  5. Step 5: Solve for x
    x = 19,448,098,472.88/154,057.20
  6. Step 6: Final answer
    x = 126,239.46

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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.