Home / 143,723.44-198,344.48-80,061.28

Finding the Fourth Proportional to 143,723.44, 198,344.48 and 80,061.28

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Solution

The fourth proportional to 143,723.44, 198,344.48 and 80,061.28 is: 110,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,723.44 : 198,344.48 = 80,061.28 : x
  2. Step 2: Convert to fraction form
    143,723.44/198,344.48 = 80,061.28/x
  3. Step 3: Cross multiply
    143,723.44x = 198,344.48 × 80,061.28
  4. Step 4: Simplify right side
    143,723.44x = 15,879,712,949.73
  5. Step 5: Solve for x
    x = 15,879,712,949.73/143,723.44
  6. Step 6: Final answer
    x = 110,487.98

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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.