Home / 143,910.17-198,650.77-108,203.95

Finding the Fourth Proportional to 143,910.17, 198,650.77 and 108,203.95

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Solution

The fourth proportional to 143,910.17, 198,650.77 and 108,203.95 is: 149,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,910.17 : 198,650.77 = 108,203.95 : x
  2. Step 2: Convert to fraction form
    143,910.17/198,650.77 = 108,203.95/x
  3. Step 3: Cross multiply
    143,910.17x = 198,650.77 × 108,203.95
  4. Step 4: Simplify right side
    143,910.17x = 21,494,797,984.54
  5. Step 5: Solve for x
    x = 21,494,797,984.54/143,910.17
  6. Step 6: Final answer
    x = 149,362.61

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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.