Home / 81,183.27-111,960.12-67,616.36

Finding the Fourth Proportional to 81,183.27, 111,960.12 and 67,616.36

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Solution

The fourth proportional to 81,183.27, 111,960.12 and 67,616.36 is: 93,249.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,183.27 : 111,960.12 = 67,616.36 : x
  2. Step 2: Convert to fraction form
    81,183.27/111,960.12 = 67,616.36/x
  3. Step 3: Cross multiply
    81,183.27x = 111,960.12 × 67,616.36
  4. Step 4: Simplify right side
    81,183.27x = 7,570,335,219.76
  5. Step 5: Solve for x
    x = 7,570,335,219.76/81,183.27
  6. Step 6: Final answer
    x = 93,249.94

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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.