Home / 143,936.92-198,634.02-80,278.84

Finding the Fourth Proportional to 143,936.92, 198,634.02 and 80,278.84

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Solution

The fourth proportional to 143,936.92, 198,634.02 and 80,278.84 is: 110,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,936.92 : 198,634.02 = 80,278.84 : x
  2. Step 2: Convert to fraction form
    143,936.92/198,634.02 = 80,278.84/x
  3. Step 3: Cross multiply
    143,936.92x = 198,634.02 × 80,278.84
  4. Step 4: Simplify right side
    143,936.92x = 15,946,108,710.14
  5. Step 5: Solve for x
    x = 15,946,108,710.14/143,936.92
  6. Step 6: Final answer
    x = 110,785.40

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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.