Home / 120,922.88-166,872.35-67,212.59

Finding the Fourth Proportional to 120,922.88, 166,872.35 and 67,212.59

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Solution

The fourth proportional to 120,922.88, 166,872.35 and 67,212.59 is: 92,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,922.88 : 166,872.35 = 67,212.59 : x
  2. Step 2: Convert to fraction form
    120,922.88/166,872.35 = 67,212.59/x
  3. Step 3: Cross multiply
    120,922.88x = 166,872.35 × 67,212.59
  4. Step 4: Simplify right side
    120,922.88x = 11,215,922,176.56
  5. Step 5: Solve for x
    x = 11,215,922,176.56/120,922.88
  6. Step 6: Final answer
    x = 92,752.69

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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.