Home / 140,968.85-194,519.09-80,543.41

Finding the Fourth Proportional to 140,968.85, 194,519.09 and 80,543.41

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Solution

The fourth proportional to 140,968.85, 194,519.09 and 80,543.41 is: 111,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,968.85 : 194,519.09 = 80,543.41 : x
  2. Step 2: Convert to fraction form
    140,968.85/194,519.09 = 80,543.41/x
  3. Step 3: Cross multiply
    140,968.85x = 194,519.09 × 80,543.41
  4. Step 4: Simplify right side
    140,968.85x = 15,667,230,231.72
  5. Step 5: Solve for x
    x = 15,667,230,231.72/140,968.85
  6. Step 6: Final answer
    x = 111,139.66

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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.