Home / 207,815.15-311,610.94-107,727.23

Finding the Fourth Proportional to 207,815.15, 311,610.94 and 107,727.23

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Solution

The fourth proportional to 207,815.15, 311,610.94 and 107,727.23 is: 161,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,815.15 : 311,610.94 = 107,727.23 : x
  2. Step 2: Convert to fraction form
    207,815.15/311,610.94 = 107,727.23/x
  3. Step 3: Cross multiply
    207,815.15x = 311,610.94 × 107,727.23
  4. Step 4: Simplify right side
    207,815.15x = 33,568,983,403.90
  5. Step 5: Solve for x
    x = 33,568,983,403.90/207,815.15
  6. Step 6: Final answer
    x = 161,532.90

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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.