Home / 120,427.25-166,198.97-66,717.23

Finding the Fourth Proportional to 120,427.25, 166,198.97 and 66,717.23

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Solution

The fourth proportional to 120,427.25, 166,198.97 and 66,717.23 is: 92,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,427.25 : 166,198.97 = 66,717.23 : x
  2. Step 2: Convert to fraction form
    120,427.25/166,198.97 = 66,717.23/x
  3. Step 3: Cross multiply
    120,427.25x = 166,198.97 × 66,717.23
  4. Step 4: Simplify right side
    120,427.25x = 11,088,334,243.05
  5. Step 5: Solve for x
    x = 11,088,334,243.05/120,427.25
  6. Step 6: Final answer
    x = 92,074.96

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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.