Home / 143,195.25-197,609.46-79,538.97

Finding the Fourth Proportional to 143,195.25, 197,609.46 and 79,538.97

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Solution

The fourth proportional to 143,195.25, 197,609.46 and 79,538.97 is: 109,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,195.25 : 197,609.46 = 79,538.97 : x
  2. Step 2: Convert to fraction form
    143,195.25/197,609.46 = 79,538.97/x
  3. Step 3: Cross multiply
    143,195.25x = 197,609.46 × 79,538.97
  4. Step 4: Simplify right side
    143,195.25x = 15,717,652,910.66
  5. Step 5: Solve for x
    x = 15,717,652,910.66/143,195.25
  6. Step 6: Final answer
    x = 109,763.79

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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.