Home / 143,613.95-198,183.39-79,951.75

Finding the Fourth Proportional to 143,613.95, 198,183.39 and 79,951.75

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Solution

The fourth proportional to 143,613.95, 198,183.39 and 79,951.75 is: 110,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.95 : 198,183.39 = 79,951.75 : x
  2. Step 2: Convert to fraction form
    143,613.95/198,183.39 = 79,951.75/x
  3. Step 3: Cross multiply
    143,613.95x = 198,183.39 × 79,951.75
  4. Step 4: Simplify right side
    143,613.95x = 15,845,108,799.34
  5. Step 5: Solve for x
    x = 15,845,108,799.34/143,613.95
  6. Step 6: Final answer
    x = 110,331.27

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1.5x scale

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.