Home / 143,584.43-198,132.20-83,174.48

Finding the Fourth Proportional to 143,584.43, 198,132.20 and 83,174.48

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Solution

The fourth proportional to 143,584.43, 198,132.20 and 83,174.48 is: 114,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584.43 : 198,132.20 = 83,174.48 : x
  2. Step 2: Convert to fraction form
    143,584.43/198,132.20 = 83,174.48/x
  3. Step 3: Cross multiply
    143,584.43x = 198,132.20 × 83,174.48
  4. Step 4: Simplify right side
    143,584.43x = 16,479,541,299.72
  5. Step 5: Solve for x
    x = 16,479,541,299.72/143,584.43
  6. Step 6: Final answer
    x = 114,772.49

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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.