Home / 143,613.56-198,193.65-79,951.34

Finding the Fourth Proportional to 143,613.56, 198,193.65 and 79,951.34

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Solution

The fourth proportional to 143,613.56, 198,193.65 and 79,951.34 is: 110,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.56 : 198,193.65 = 79,951.34 : x
  2. Step 2: Convert to fraction form
    143,613.56/198,193.65 = 79,951.34/x
  3. Step 3: Cross multiply
    143,613.56x = 198,193.65 × 79,951.34
  4. Step 4: Simplify right side
    143,613.56x = 15,845,847,896.99
  5. Step 5: Solve for x
    x = 15,845,847,896.99/143,613.56
  6. Step 6: Final answer
    x = 110,336.71

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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.