Home / 143,997.95-198,717.30-80,335.77

Finding the Fourth Proportional to 143,997.95, 198,717.30 and 80,335.77

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Solution

The fourth proportional to 143,997.95, 198,717.30 and 80,335.77 is: 110,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,997.95 : 198,717.30 = 80,335.77 : x
  2. Step 2: Convert to fraction form
    143,997.95/198,717.30 = 80,335.77/x
  3. Step 3: Cross multiply
    143,997.95x = 198,717.30 × 80,335.77
  4. Step 4: Simplify right side
    143,997.95x = 15,964,106,562.63
  5. Step 5: Solve for x
    x = 15,964,106,562.63/143,997.95
  6. Step 6: Final answer
    x = 110,863.43

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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.