Home / 209,198.89-313,791.04-67,042.07

Finding the Fourth Proportional to 209,198.89, 313,791.04 and 67,042.07

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Solution

The fourth proportional to 209,198.89, 313,791.04 and 67,042.07 is: 100,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,198.89 : 313,791.04 = 67,042.07 : x
  2. Step 2: Convert to fraction form
    209,198.89/313,791.04 = 67,042.07/x
  3. Step 3: Cross multiply
    209,198.89x = 313,791.04 × 67,042.07
  4. Step 4: Simplify right side
    209,198.89x = 21,037,200,869.05
  5. Step 5: Solve for x
    x = 21,037,200,869.05/209,198.89
  6. Step 6: Final answer
    x = 100,560.77

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1.5x scale

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.