Home / 106,728.60-159,882.30-54,175.80

Finding the Fourth Proportional to 106,728.60, 159,882.30 and 54,175.80

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Solution

The fourth proportional to 106,728.60, 159,882.30 and 54,175.80 is: 81,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,728.60 : 159,882.30 = 54,175.80 : x
  2. Step 2: Convert to fraction form
    106,728.60/159,882.30 = 54,175.80/x
  3. Step 3: Cross multiply
    106,728.60x = 159,882.30 × 54,175.80
  4. Step 4: Simplify right side
    106,728.60x = 8,661,751,508.34
  5. Step 5: Solve for x
    x = 8,661,751,508.34/106,728.60
  6. Step 6: Final answer
    x = 81,156.80

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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.