Home / 218,532.12-327,823.56-76,333.38

Finding the Fourth Proportional to 218,532.12, 327,823.56 and 76,333.38

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Solution

The fourth proportional to 218,532.12, 327,823.56 and 76,333.38 is: 114,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,532.12 : 327,823.56 = 76,333.38 : x
  2. Step 2: Convert to fraction form
    218,532.12/327,823.56 = 76,333.38/x
  3. Step 3: Cross multiply
    218,532.12x = 327,823.56 × 76,333.38
  4. Step 4: Simplify right side
    218,532.12x = 25,023,880,378.43
  5. Step 5: Solve for x
    x = 25,023,880,378.43/218,532.12
  6. Step 6: Final answer
    x = 114,508.94

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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.