Home / 120,826.14-166,739.67-67,109.82

Finding the Fourth Proportional to 120,826.14, 166,739.67 and 67,109.82

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Solution

The fourth proportional to 120,826.14, 166,739.67 and 67,109.82 is: 92,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,826.14 : 166,739.67 = 67,109.82 : x
  2. Step 2: Convert to fraction form
    120,826.14/166,739.67 = 67,109.82/x
  3. Step 3: Cross multiply
    120,826.14x = 166,739.67 × 67,109.82
  4. Step 4: Simplify right side
    120,826.14x = 11,189,869,240.56
  5. Step 5: Solve for x
    x = 11,189,869,240.56/120,826.14
  6. Step 6: Final answer
    x = 92,611.33

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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.