Home / 140,685.11-194,163.94-80,241.90

Finding the Fourth Proportional to 140,685.11, 194,163.94 and 80,241.90

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Solution

The fourth proportional to 140,685.11, 194,163.94 and 80,241.90 is: 110,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.11 : 194,163.94 = 80,241.90 : x
  2. Step 2: Convert to fraction form
    140,685.11/194,163.94 = 80,241.90/x
  3. Step 3: Cross multiply
    140,685.11x = 194,163.94 × 80,241.90
  4. Step 4: Simplify right side
    140,685.11x = 15,580,083,172.28
  5. Step 5: Solve for x
    x = 15,580,083,172.28/140,685.11
  6. Step 6: Final answer
    x = 110,744.37

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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.