Home / 209,016.25-313,487.45-82,614.47

Finding the Fourth Proportional to 209,016.25, 313,487.45 and 82,614.47

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Solution

The fourth proportional to 209,016.25, 313,487.45 and 82,614.47 is: 123,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,016.25 : 313,487.45 = 82,614.47 : x
  2. Step 2: Convert to fraction form
    209,016.25/313,487.45 = 82,614.47/x
  3. Step 3: Cross multiply
    209,016.25x = 313,487.45 × 82,614.47
  4. Step 4: Simplify right side
    209,016.25x = 25,898,599,120.33
  5. Step 5: Solve for x
    x = 25,898,599,120.33/209,016.25
  6. Step 6: Final answer
    x = 123,907.11

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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.