Home / 261,179.42-391,399.62-111,268.77

Finding the Fourth Proportional to 261,179.42, 391,399.62 and 111,268.77

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Solution

The fourth proportional to 261,179.42, 391,399.62 and 111,268.77 is: 166,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,179.42 : 391,399.62 = 111,268.77 : x
  2. Step 2: Convert to fraction form
    261,179.42/391,399.62 = 111,268.77/x
  3. Step 3: Cross multiply
    261,179.42x = 391,399.62 × 111,268.77
  4. Step 4: Simplify right side
    261,179.42x = 43,550,554,295.87
  5. Step 5: Solve for x
    x = 43,550,554,295.87/261,179.42
  6. Step 6: Final answer
    x = 166,745.74

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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.