Home / 214,092.08-321,183.20-80,969.36

Finding the Fourth Proportional to 214,092.08, 321,183.20 and 80,969.36

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Solution

The fourth proportional to 214,092.08, 321,183.20 and 80,969.36 is: 121,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,092.08 : 321,183.20 = 80,969.36 : x
  2. Step 2: Convert to fraction form
    214,092.08/321,183.20 = 80,969.36/x
  3. Step 3: Cross multiply
    214,092.08x = 321,183.20 × 80,969.36
  4. Step 4: Simplify right side
    214,092.08x = 26,005,998,146.75
  5. Step 5: Solve for x
    x = 26,005,998,146.75/214,092.08
  6. Step 6: Final answer
    x = 121,471.09

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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.