Home / 143,960.18-198,669.31-80,296.61

Finding the Fourth Proportional to 143,960.18, 198,669.31 and 80,296.61

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Solution

The fourth proportional to 143,960.18, 198,669.31 and 80,296.61 is: 110,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,960.18 : 198,669.31 = 80,296.61 : x
  2. Step 2: Convert to fraction form
    143,960.18/198,669.31 = 80,296.61/x
  3. Step 3: Cross multiply
    143,960.18x = 198,669.31 × 80,296.61
  4. Step 4: Simplify right side
    143,960.18x = 15,952,470,909.95
  5. Step 5: Solve for x
    x = 15,952,470,909.95/143,960.18
  6. Step 6: Final answer
    x = 110,811.69

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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.