Home / 218,631.52-327,993.36-70,876

Finding the Fourth Proportional to 218,631.52, 327,993.36 and 70,876

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Solution

The fourth proportional to 218,631.52, 327,993.36 and 70,876 is: 106,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,631.52 : 327,993.36 = 70,876 : x
  2. Step 2: Convert to fraction form
    218,631.52/327,993.36 = 70,876/x
  3. Step 3: Cross multiply
    218,631.52x = 327,993.36 × 70,876
  4. Step 4: Simplify right side
    218,631.52x = 23,246,857,383.36
  5. Step 5: Solve for x
    x = 23,246,857,383.36/218,631.52
  6. Step 6: Final answer
    x = 106,328.94

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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.