Home / 120,344.55-166,086.62-66,629.56

Finding the Fourth Proportional to 120,344.55, 166,086.62 and 66,629.56

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Solution

The fourth proportional to 120,344.55, 166,086.62 and 66,629.56 is: 91,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,344.55 : 166,086.62 = 66,629.56 : x
  2. Step 2: Convert to fraction form
    120,344.55/166,086.62 = 66,629.56/x
  3. Step 3: Cross multiply
    120,344.55x = 166,086.62 × 66,629.56
  4. Step 4: Simplify right side
    120,344.55x = 11,066,278,505.12
  5. Step 5: Solve for x
    x = 11,066,278,505.12/120,344.55
  6. Step 6: Final answer
    x = 91,954.96

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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.