Home / 143,936.38-198,631.71-80,274.13

Finding the Fourth Proportional to 143,936.38, 198,631.71 and 80,274.13

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Solution

The fourth proportional to 143,936.38, 198,631.71 and 80,274.13 is: 110,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,936.38 : 198,631.71 = 80,274.13 : x
  2. Step 2: Convert to fraction form
    143,936.38/198,631.71 = 80,274.13/x
  3. Step 3: Cross multiply
    143,936.38x = 198,631.71 × 80,274.13
  4. Step 4: Simplify right side
    143,936.38x = 15,944,987,710.66
  5. Step 5: Solve for x
    x = 15,944,987,710.66/143,936.38
  6. Step 6: Final answer
    x = 110,778.02

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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.