Home / 165,231.28-228,021.24-89,781.04

Finding the Fourth Proportional to 165,231.28, 228,021.24 and 89,781.04

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Solution

The fourth proportional to 165,231.28, 228,021.24 and 89,781.04 is: 123,898.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,231.28 : 228,021.24 = 89,781.04 : x
  2. Step 2: Convert to fraction form
    165,231.28/228,021.24 = 89,781.04/x
  3. Step 3: Cross multiply
    165,231.28x = 228,021.24 × 89,781.04
  4. Step 4: Simplify right side
    165,231.28x = 20,471,984,069.29
  5. Step 5: Solve for x
    x = 20,471,984,069.29/165,231.28
  6. Step 6: Final answer
    x = 123,898.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.