Home / 217,163.10-325,629.45-76,926.30

Finding the Fourth Proportional to 217,163.10, 325,629.45 and 76,926.30

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Solution

The fourth proportional to 217,163.10, 325,629.45 and 76,926.30 is: 115,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,163.10 : 325,629.45 = 76,926.30 : x
  2. Step 2: Convert to fraction form
    217,163.10/325,629.45 = 76,926.30/x
  3. Step 3: Cross multiply
    217,163.10x = 325,629.45 × 76,926.30
  4. Step 4: Simplify right side
    217,163.10x = 25,049,468,759.54
  5. Step 5: Solve for x
    x = 25,049,468,759.54/217,163.10
  6. Step 6: Final answer
    x = 115,348.64

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1.5x scale

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.