Home / 143,694.04-198,292.80-80,028.52

Finding the Fourth Proportional to 143,694.04, 198,292.80 and 80,028.52

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Solution

The fourth proportional to 143,694.04, 198,292.80 and 80,028.52 is: 110,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,694.04 : 198,292.80 = 80,028.52 : x
  2. Step 2: Convert to fraction form
    143,694.04/198,292.80 = 80,028.52/x
  3. Step 3: Cross multiply
    143,694.04x = 198,292.80 × 80,028.52
  4. Step 4: Simplify right side
    143,694.04x = 15,869,079,310.66
  5. Step 5: Solve for x
    x = 15,869,079,310.66/143,694.04
  6. Step 6: Final answer
    x = 110,436.59

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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.