Home / 209,190.26-313,687.38-75,977.66

Finding the Fourth Proportional to 209,190.26, 313,687.38 and 75,977.66

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Solution

The fourth proportional to 209,190.26, 313,687.38 and 75,977.66 is: 113,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,190.26 : 313,687.38 = 75,977.66 : x
  2. Step 2: Convert to fraction form
    209,190.26/313,687.38 = 75,977.66/x
  3. Step 3: Cross multiply
    209,190.26x = 313,687.38 × 75,977.66
  4. Step 4: Simplify right side
    209,190.26x = 23,833,233,103.93
  5. Step 5: Solve for x
    x = 23,833,233,103.93/209,190.26
  6. Step 6: Final answer
    x = 113,930.89

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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.