Home / 168,114.81-231,679.38-120,284.85

Finding the Fourth Proportional to 168,114.81, 231,679.38 and 120,284.85

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Solution

The fourth proportional to 168,114.81, 231,679.38 and 120,284.85 is: 165,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,114.81 : 231,679.38 = 120,284.85 : x
  2. Step 2: Convert to fraction form
    168,114.81/231,679.38 = 120,284.85/x
  3. Step 3: Cross multiply
    168,114.81x = 231,679.38 × 120,284.85
  4. Step 4: Simplify right side
    168,114.81x = 27,867,519,471.39
  5. Step 5: Solve for x
    x = 27,867,519,471.39/168,114.81
  6. Step 6: Final answer
    x = 165,764.81

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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.