Home / 120,571.83-166,396.60-66,856.85

Finding the Fourth Proportional to 120,571.83, 166,396.60 and 66,856.85

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Solution

The fourth proportional to 120,571.83, 166,396.60 and 66,856.85 is: 92,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,571.83 : 166,396.60 = 66,856.85 : x
  2. Step 2: Convert to fraction form
    120,571.83/166,396.60 = 66,856.85/x
  3. Step 3: Cross multiply
    120,571.83x = 166,396.60 × 66,856.85
  4. Step 4: Simplify right side
    120,571.83x = 11,124,752,775.56
  5. Step 5: Solve for x
    x = 11,124,752,775.56/120,571.83
  6. Step 6: Final answer
    x = 92,266.60

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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.