Home / 154,282.18-231,376.09-54,419.02

Finding the Fourth Proportional to 154,282.18, 231,376.09 and 54,419.02

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Solution

The fourth proportional to 154,282.18, 231,376.09 and 54,419.02 is: 81,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,282.18 : 231,376.09 = 54,419.02 : x
  2. Step 2: Convert to fraction form
    154,282.18/231,376.09 = 54,419.02/x
  3. Step 3: Cross multiply
    154,282.18x = 231,376.09 × 54,419.02
  4. Step 4: Simplify right side
    154,282.18x = 12,591,259,456.78
  5. Step 5: Solve for x
    x = 12,591,259,456.78/154,282.18
  6. Step 6: Final answer
    x = 81,611.88

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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.