Home / 218,081.20-327,175.80-99,727.60

Finding the Fourth Proportional to 218,081.20, 327,175.80 and 99,727.60

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Solution

The fourth proportional to 218,081.20, 327,175.80 and 99,727.60 is: 149,616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,081.20 : 327,175.80 = 99,727.60 : x
  2. Step 2: Convert to fraction form
    218,081.20/327,175.80 = 99,727.60/x
  3. Step 3: Cross multiply
    218,081.20x = 327,175.80 × 99,727.60
  4. Step 4: Simplify right side
    218,081.20x = 32,628,457,312.08
  5. Step 5: Solve for x
    x = 32,628,457,312.08/218,081.20
  6. Step 6: Final answer
    x = 149,616.09

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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.