Home / 143,586.48-198,145.92-79,922.91

Finding the Fourth Proportional to 143,586.48, 198,145.92 and 79,922.91

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Solution

The fourth proportional to 143,586.48, 198,145.92 and 79,922.91 is: 110,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,586.48 : 198,145.92 = 79,922.91 : x
  2. Step 2: Convert to fraction form
    143,586.48/198,145.92 = 79,922.91/x
  3. Step 3: Cross multiply
    143,586.48x = 198,145.92 × 79,922.91
  4. Step 4: Simplify right side
    143,586.48x = 15,836,398,531.03
  5. Step 5: Solve for x
    x = 15,836,398,531.03/143,586.48
  6. Step 6: Final answer
    x = 110,291.71

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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.