Home / 209,092.96-313,645.20-51,320.80

Finding the Fourth Proportional to 209,092.96, 313,645.20 and 51,320.80

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Solution

The fourth proportional to 209,092.96, 313,645.20 and 51,320.80 is: 76,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,092.96 : 313,645.20 = 51,320.80 : x
  2. Step 2: Convert to fraction form
    209,092.96/313,645.20 = 51,320.80/x
  3. Step 3: Cross multiply
    209,092.96x = 313,645.20 × 51,320.80
  4. Step 4: Simplify right side
    209,092.96x = 16,096,522,580.16
  5. Step 5: Solve for x
    x = 16,096,522,580.16/209,092.96
  6. Step 6: Final answer
    x = 76,982.61

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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.