Home / 143,961.52-198,682.32-80,321.44

Finding the Fourth Proportional to 143,961.52, 198,682.32 and 80,321.44

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Solution

The fourth proportional to 143,961.52, 198,682.32 and 80,321.44 is: 110,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,961.52 : 198,682.32 = 80,321.44 : x
  2. Step 2: Convert to fraction form
    143,961.52/198,682.32 = 80,321.44/x
  3. Step 3: Cross multiply
    143,961.52x = 198,682.32 × 80,321.44
  4. Step 4: Simplify right side
    143,961.52x = 15,958,450,044.94
  5. Step 5: Solve for x
    x = 15,958,450,044.94/143,961.52
  6. Step 6: Final answer
    x = 110,852.19

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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.