Home / 209,469.38-289,065.31-113,974.43

Finding the Fourth Proportional to 209,469.38, 289,065.31 and 113,974.43

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Solution

The fourth proportional to 209,469.38, 289,065.31 and 113,974.43 is: 157,283.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,469.38 : 289,065.31 = 113,974.43 : x
  2. Step 2: Convert to fraction form
    209,469.38/289,065.31 = 113,974.43/x
  3. Step 3: Cross multiply
    209,469.38x = 289,065.31 × 113,974.43
  4. Step 4: Simplify right side
    209,469.38x = 32,946,052,209.76
  5. Step 5: Solve for x
    x = 32,946,052,209.76/209,469.38
  6. Step 6: Final answer
    x = 157,283.38

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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.