Home / 154,422.40-231,633.60-54,581.80

Finding the Fourth Proportional to 154,422.40, 231,633.60 and 54,581.80

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Solution

The fourth proportional to 154,422.40, 231,633.60 and 54,581.80 is: 81,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,422.40 : 231,633.60 = 54,581.80 : x
  2. Step 2: Convert to fraction form
    154,422.40/231,633.60 = 54,581.80/x
  3. Step 3: Cross multiply
    154,422.40x = 231,633.60 × 54,581.80
  4. Step 4: Simplify right side
    154,422.40x = 12,642,978,828.48
  5. Step 5: Solve for x
    x = 12,642,978,828.48/154,422.40
  6. Step 6: Final answer
    x = 81,872.70

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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.