Home / 120,919.42-166,856.11-67,195.77

Finding the Fourth Proportional to 120,919.42, 166,856.11 and 67,195.77

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Solution

The fourth proportional to 120,919.42, 166,856.11 and 67,195.77 is: 92,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,919.42 : 166,856.11 = 67,195.77 : x
  2. Step 2: Convert to fraction form
    120,919.42/166,856.11 = 67,195.77/x
  3. Step 3: Cross multiply
    120,919.42x = 166,856.11 × 67,195.77
  4. Step 4: Simplify right side
    120,919.42x = 11,212,024,790.65
  5. Step 5: Solve for x
    x = 11,212,024,790.65/120,919.42
  6. Step 6: Final answer
    x = 92,723.11

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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.