Home / 218,106.21-327,159.39-68,358.12

Finding the Fourth Proportional to 218,106.21, 327,159.39 and 68,358.12

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Solution

The fourth proportional to 218,106.21, 327,159.39 and 68,358.12 is: 102,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,106.21 : 327,159.39 = 68,358.12 : x
  2. Step 2: Convert to fraction form
    218,106.21/327,159.39 = 68,358.12/x
  3. Step 3: Cross multiply
    218,106.21x = 327,159.39 × 68,358.12
  4. Step 4: Simplify right side
    218,106.21x = 22,363,999,204.95
  5. Step 5: Solve for x
    x = 22,363,999,204.95/218,106.21
  6. Step 6: Final answer
    x = 102,537.20

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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.