Home / 143,691.26-198,297.48-80,030.12

Finding the Fourth Proportional to 143,691.26, 198,297.48 and 80,030.12

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Solution

The fourth proportional to 143,691.26, 198,297.48 and 80,030.12 is: 110,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,691.26 : 198,297.48 = 80,030.12 : x
  2. Step 2: Convert to fraction form
    143,691.26/198,297.48 = 80,030.12/x
  3. Step 3: Cross multiply
    143,691.26x = 198,297.48 × 80,030.12
  4. Step 4: Simplify right side
    143,691.26x = 15,869,770,128.61
  5. Step 5: Solve for x
    x = 15,869,770,128.61/143,691.26
  6. Step 6: Final answer
    x = 110,443.53

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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.