Home / 143,844.42-198,515.16-80,192.46

Finding the Fourth Proportional to 143,844.42, 198,515.16 and 80,192.46

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Solution

The fourth proportional to 143,844.42, 198,515.16 and 80,192.46 is: 110,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,844.42 : 198,515.16 = 80,192.46 : x
  2. Step 2: Convert to fraction form
    143,844.42/198,515.16 = 80,192.46/x
  3. Step 3: Cross multiply
    143,844.42x = 198,515.16 × 80,192.46
  4. Step 4: Simplify right side
    143,844.42x = 15,919,419,027.69
  5. Step 5: Solve for x
    x = 15,919,419,027.69/143,844.42
  6. Step 6: Final answer
    x = 110,671.09

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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.