Home / 120,786.33-166,679.55-67,074.75

Finding the Fourth Proportional to 120,786.33, 166,679.55 and 67,074.75

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Solution

The fourth proportional to 120,786.33, 166,679.55 and 67,074.75 is: 92,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.33 : 166,679.55 = 67,074.75 : x
  2. Step 2: Convert to fraction form
    120,786.33/166,679.55 = 67,074.75/x
  3. Step 3: Cross multiply
    120,786.33x = 166,679.55 × 67,074.75
  4. Step 4: Simplify right side
    120,786.33x = 11,179,989,146.36
  5. Step 5: Solve for x
    x = 11,179,989,146.36/120,786.33
  6. Step 6: Final answer
    x = 92,560.05

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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.