Home / 120,349.12-166,086.97-66,634.14

Finding the Fourth Proportional to 120,349.12, 166,086.97 and 66,634.14

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Solution

The fourth proportional to 120,349.12, 166,086.97 and 66,634.14 is: 91,957.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.12 : 166,086.97 = 66,634.14 : x
  2. Step 2: Convert to fraction form
    120,349.12/166,086.97 = 66,634.14/x
  3. Step 3: Cross multiply
    120,349.12x = 166,086.97 × 66,634.14
  4. Step 4: Simplify right side
    120,349.12x = 11,067,061,580.72
  5. Step 5: Solve for x
    x = 11,067,061,580.72/120,349.12
  6. Step 6: Final answer
    x = 91,957.98

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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.