Home / 220,979.10-330,812.55-132,186.90

Finding the Fourth Proportional to 220,979.10, 330,812.55 and 132,186.90

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Solution

The fourth proportional to 220,979.10, 330,812.55 and 132,186.90 is: 197,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,979.10 : 330,812.55 = 132,186.90 : x
  2. Step 2: Convert to fraction form
    220,979.10/330,812.55 = 132,186.90/x
  3. Step 3: Cross multiply
    220,979.10x = 330,812.55 × 132,186.90
  4. Step 4: Simplify right side
    220,979.10x = 43,729,085,465.60
  5. Step 5: Solve for x
    x = 43,729,085,465.60/220,979.10
  6. Step 6: Final answer
    x = 197,887.88

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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.