Home / 209,383.13-313,921.57-67,147.44

Finding the Fourth Proportional to 209,383.13, 313,921.57 and 67,147.44

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Solution

The fourth proportional to 209,383.13, 313,921.57 and 67,147.44 is: 100,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,383.13 : 313,921.57 = 67,147.44 : x
  2. Step 2: Convert to fraction form
    209,383.13/313,921.57 = 67,147.44/x
  3. Step 3: Cross multiply
    209,383.13x = 313,921.57 × 67,147.44
  4. Step 4: Simplify right side
    209,383.13x = 21,079,029,946.35
  5. Step 5: Solve for x
    x = 21,079,029,946.35/209,383.13
  6. Step 6: Final answer
    x = 100,672.06

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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.