Home / 209,224.20-313,821.90-67,067.40

Finding the Fourth Proportional to 209,224.20, 313,821.90 and 67,067.40

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Solution

The fourth proportional to 209,224.20, 313,821.90 and 67,067.40 is: 100,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,224.20 : 313,821.90 = 67,067.40 : x
  2. Step 2: Convert to fraction form
    209,224.20/313,821.90 = 67,067.40/x
  3. Step 3: Cross multiply
    209,224.20x = 313,821.90 × 67,067.40
  4. Step 4: Simplify right side
    209,224.20x = 21,047,218,896.06
  5. Step 5: Solve for x
    x = 21,047,218,896.06/209,224.20
  6. Step 6: Final answer
    x = 100,596.48

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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.