Home / 207,543.06-311,358.33-67,290.75

Finding the Fourth Proportional to 207,543.06, 311,358.33 and 67,290.75

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Solution

The fourth proportional to 207,543.06, 311,358.33 and 67,290.75 is: 100,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,543.06 : 311,358.33 = 67,290.75 : x
  2. Step 2: Convert to fraction form
    207,543.06/311,358.33 = 67,290.75/x
  3. Step 3: Cross multiply
    207,543.06x = 311,358.33 × 67,290.75
  4. Step 4: Simplify right side
    207,543.06x = 20,951,535,544.45
  5. Step 5: Solve for x
    x = 20,951,535,544.45/207,543.06
  6. Step 6: Final answer
    x = 100,950.31

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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.