Home / 88,169.09-121,591.06-67,993.61

Finding the Fourth Proportional to 88,169.09, 121,591.06 and 67,993.61

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Solution

The fourth proportional to 88,169.09, 121,591.06 and 67,993.61 is: 93,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,169.09 : 121,591.06 = 67,993.61 : x
  2. Step 2: Convert to fraction form
    88,169.09/121,591.06 = 67,993.61/x
  3. Step 3: Cross multiply
    88,169.09x = 121,591.06 × 67,993.61
  4. Step 4: Simplify right side
    88,169.09x = 8,267,414,335.19
  5. Step 5: Solve for x
    x = 8,267,414,335.19/88,169.09
  6. Step 6: Final answer
    x = 93,767.72

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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.