Home / 120,349.57-166,087.60-66,634.59

Finding the Fourth Proportional to 120,349.57, 166,087.60 and 66,634.59

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Solution

The fourth proportional to 120,349.57, 166,087.60 and 66,634.59 is: 91,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.57 : 166,087.60 = 66,634.59 : x
  2. Step 2: Convert to fraction form
    120,349.57/166,087.60 = 66,634.59/x
  3. Step 3: Cross multiply
    120,349.57x = 166,087.60 × 66,634.59
  4. Step 4: Simplify right side
    120,349.57x = 11,067,177,966.47
  5. Step 5: Solve for x
    x = 11,067,177,966.47/120,349.57
  6. Step 6: Final answer
    x = 91,958.60

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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.