Home / 168,720.72-232,775.64-108,286.80

Finding the Fourth Proportional to 168,720.72, 232,775.64 and 108,286.80

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Solution

The fourth proportional to 168,720.72, 232,775.64 and 108,286.80 is: 149,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,720.72 : 232,775.64 = 108,286.80 : x
  2. Step 2: Convert to fraction form
    168,720.72/232,775.64 = 108,286.80/x
  3. Step 3: Cross multiply
    168,720.72x = 232,775.64 × 108,286.80
  4. Step 4: Simplify right side
    168,720.72x = 25,206,529,173.55
  5. Step 5: Solve for x
    x = 25,206,529,173.55/168,720.72
  6. Step 6: Final answer
    x = 149,397.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.