Home / 143,556.26-198,105.68-79,894.06

Finding the Fourth Proportional to 143,556.26, 198,105.68 and 79,894.06

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Solution

The fourth proportional to 143,556.26, 198,105.68 and 79,894.06 is: 110,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,556.26 : 198,105.68 = 79,894.06 : x
  2. Step 2: Convert to fraction form
    143,556.26/198,105.68 = 79,894.06/x
  3. Step 3: Cross multiply
    143,556.26x = 198,105.68 × 79,894.06
  4. Step 4: Simplify right side
    143,556.26x = 15,827,467,084.26
  5. Step 5: Solve for x
    x = 15,827,467,084.26/143,556.26
  6. Step 6: Final answer
    x = 110,252.71

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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.