Home / 143,833.14-198,489.95-80,169.57

Finding the Fourth Proportional to 143,833.14, 198,489.95 and 80,169.57

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Solution

The fourth proportional to 143,833.14, 198,489.95 and 80,169.57 is: 110,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,833.14 : 198,489.95 = 80,169.57 : x
  2. Step 2: Convert to fraction form
    143,833.14/198,489.95 = 80,169.57/x
  3. Step 3: Cross multiply
    143,833.14x = 198,489.95 × 80,169.57
  4. Step 4: Simplify right side
    143,833.14x = 15,912,853,940.82
  5. Step 5: Solve for x
    x = 15,912,853,940.82/143,833.14
  6. Step 6: Final answer
    x = 110,634.13

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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.