Home / 218,900.20-328,360.14-67,086.16

Finding the Fourth Proportional to 218,900.20, 328,360.14 and 67,086.16

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Solution

The fourth proportional to 218,900.20, 328,360.14 and 67,086.16 is: 100,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,900.20 : 328,360.14 = 67,086.16 : x
  2. Step 2: Convert to fraction form
    218,900.20/328,360.14 = 67,086.16/x
  3. Step 3: Cross multiply
    218,900.20x = 328,360.14 × 67,086.16
  4. Step 4: Simplify right side
    218,900.20x = 22,028,418,912.43
  5. Step 5: Solve for x
    x = 22,028,418,912.43/218,900.20
  6. Step 6: Final answer
    x = 100,632.25

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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.