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Finding the Fourth Proportional to 140,975.50, 194,556.50 and 80,544.85

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Solution

The fourth proportional to 140,975.50, 194,556.50 and 80,544.85 is: 111,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,975.50 : 194,556.50 = 80,544.85 : x
  2. Step 2: Convert to fraction form
    140,975.50/194,556.50 = 80,544.85/x
  3. Step 3: Cross multiply
    140,975.50x = 194,556.50 × 80,544.85
  4. Step 4: Simplify right side
    140,975.50x = 15,670,523,614.08
  5. Step 5: Solve for x
    x = 15,670,523,614.08/140,975.50
  6. Step 6: Final answer
    x = 111,157.78

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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.