Home / 120,628.44-166,358.22-75,310.56

Finding the Fourth Proportional to 120,628.44, 166,358.22 and 75,310.56

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Solution

The fourth proportional to 120,628.44, 166,358.22 and 75,310.56 is: 103,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,628.44 : 166,358.22 = 75,310.56 : x
  2. Step 2: Convert to fraction form
    120,628.44/166,358.22 = 75,310.56/x
  3. Step 3: Cross multiply
    120,628.44x = 166,358.22 × 75,310.56
  4. Step 4: Simplify right side
    120,628.44x = 12,528,530,708.80
  5. Step 5: Solve for x
    x = 12,528,530,708.80/120,628.44
  6. Step 6: Final answer
    x = 103,860.51

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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.