Home / 121,268.06-166,138.03-116,722.73

Finding the Fourth Proportional to 121,268.06, 166,138.03 and 116,722.73

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Solution

The fourth proportional to 121,268.06, 166,138.03 and 116,722.73 is: 159,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,268.06 : 166,138.03 = 116,722.73 : x
  2. Step 2: Convert to fraction form
    121,268.06/166,138.03 = 116,722.73/x
  3. Step 3: Cross multiply
    121,268.06x = 166,138.03 × 116,722.73
  4. Step 4: Simplify right side
    121,268.06x = 19,392,083,295.92
  5. Step 5: Solve for x
    x = 19,392,083,295.92/121,268.06
  6. Step 6: Final answer
    x = 159,910.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.