Home / 143,862.66-198,528.30-80,198.82

Finding the Fourth Proportional to 143,862.66, 198,528.30 and 80,198.82

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Solution

The fourth proportional to 143,862.66, 198,528.30 and 80,198.82 is: 110,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.66 : 198,528.30 = 80,198.82 : x
  2. Step 2: Convert to fraction form
    143,862.66/198,528.30 = 80,198.82/x
  3. Step 3: Cross multiply
    143,862.66x = 198,528.30 × 80,198.82
  4. Step 4: Simplify right side
    143,862.66x = 15,921,735,396.61
  5. Step 5: Solve for x
    x = 15,921,735,396.61/143,862.66
  6. Step 6: Final answer
    x = 110,673.16

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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.