Home / 207,939.70-311,909.55-113,461.30

Finding the Fourth Proportional to 207,939.70, 311,909.55 and 113,461.30

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Solution

The fourth proportional to 207,939.70, 311,909.55 and 113,461.30 is: 170,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,939.70 : 311,909.55 = 113,461.30 : x
  2. Step 2: Convert to fraction form
    207,939.70/311,909.55 = 113,461.30/x
  3. Step 3: Cross multiply
    207,939.70x = 311,909.55 × 113,461.30
  4. Step 4: Simplify right side
    207,939.70x = 35,389,663,025.42
  5. Step 5: Solve for x
    x = 35,389,663,025.42/207,939.70
  6. Step 6: Final answer
    x = 170,191.95

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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.