Home / 143,604.43-198,174.03-79,957.26

Finding the Fourth Proportional to 143,604.43, 198,174.03 and 79,957.26

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Solution

The fourth proportional to 143,604.43, 198,174.03 and 79,957.26 is: 110,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,604.43 : 198,174.03 = 79,957.26 : x
  2. Step 2: Convert to fraction form
    143,604.43/198,174.03 = 79,957.26/x
  3. Step 3: Cross multiply
    143,604.43x = 198,174.03 × 79,957.26
  4. Step 4: Simplify right side
    143,604.43x = 15,845,452,142.12
  5. Step 5: Solve for x
    x = 15,845,452,142.12/143,604.43
  6. Step 6: Final answer
    x = 110,340.97

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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.