Home / 154,425.40-231,638.10-54,584.80

Finding the Fourth Proportional to 154,425.40, 231,638.10 and 54,584.80

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Solution

The fourth proportional to 154,425.40, 231,638.10 and 54,584.80 is: 81,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,425.40 : 231,638.10 = 54,584.80 : x
  2. Step 2: Convert to fraction form
    154,425.40/231,638.10 = 54,584.80/x
  3. Step 3: Cross multiply
    154,425.40x = 231,638.10 × 54,584.80
  4. Step 4: Simplify right side
    154,425.40x = 12,643,919,360.88
  5. Step 5: Solve for x
    x = 12,643,919,360.88/154,425.40
  6. Step 6: Final answer
    x = 81,877.20

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1.5x scale

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.