Home / 218,386.70-327,581.88-68,623.68

Finding the Fourth Proportional to 218,386.70, 327,581.88 and 68,623.68

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Solution

The fourth proportional to 218,386.70, 327,581.88 and 68,623.68 is: 102,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,386.70 : 327,581.88 = 68,623.68 : x
  2. Step 2: Convert to fraction form
    218,386.70/327,581.88 = 68,623.68/x
  3. Step 3: Cross multiply
    218,386.70x = 327,581.88 × 68,623.68
  4. Step 4: Simplify right side
    218,386.70x = 22,479,874,106.92
  5. Step 5: Solve for x
    x = 22,479,874,106.92/218,386.70
  6. Step 6: Final answer
    x = 102,936.10

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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.