Home / 427,734.68-641,568.60-112,183.38

Finding the Fourth Proportional to 427,734.68, 641,568.60 and 112,183.38

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Solution

The fourth proportional to 427,734.68, 641,568.60 and 112,183.38 is: 168,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,734.68 : 641,568.60 = 112,183.38 : x
  2. Step 2: Convert to fraction form
    427,734.68/641,568.60 = 112,183.38/x
  3. Step 3: Cross multiply
    427,734.68x = 641,568.60 × 112,183.38
  4. Step 4: Simplify right side
    427,734.68x = 71,973,334,049.87
  5. Step 5: Solve for x
    x = 71,973,334,049.87/427,734.68
  6. Step 6: Final answer
    x = 168,266.31

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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.