Home / 120,334.38-166,062.75-66,620.28

Finding the Fourth Proportional to 120,334.38, 166,062.75 and 66,620.28

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Solution

The fourth proportional to 120,334.38, 166,062.75 and 66,620.28 is: 91,936.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,334.38 : 166,062.75 = 66,620.28 : x
  2. Step 2: Convert to fraction form
    120,334.38/166,062.75 = 66,620.28/x
  3. Step 3: Cross multiply
    120,334.38x = 166,062.75 × 66,620.28
  4. Step 4: Simplify right side
    120,334.38x = 11,063,146,902.57
  5. Step 5: Solve for x
    x = 11,063,146,902.57/120,334.38
  6. Step 6: Final answer
    x = 91,936.71

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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.