Home / 207,375.02-311,047.92-80,991.52

Finding the Fourth Proportional to 207,375.02, 311,047.92 and 80,991.52

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Solution

The fourth proportional to 207,375.02, 311,047.92 and 80,991.52 is: 121,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,375.02 : 311,047.92 = 80,991.52 : x
  2. Step 2: Convert to fraction form
    207,375.02/311,047.92 = 80,991.52/x
  3. Step 3: Cross multiply
    207,375.02x = 311,047.92 × 80,991.52
  4. Step 4: Simplify right side
    207,375.02x = 25,192,243,833.64
  5. Step 5: Solve for x
    x = 25,192,243,833.64/207,375.02
  6. Step 6: Final answer
    x = 121,481.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.