Home / 120,350.87-166,089.39-66,635.88

Finding the Fourth Proportional to 120,350.87, 166,089.39 and 66,635.88

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Solution

The fourth proportional to 120,350.87, 166,089.39 and 66,635.88 is: 91,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.87 : 166,089.39 = 66,635.88 : x
  2. Step 2: Convert to fraction form
    120,350.87/166,089.39 = 66,635.88/x
  3. Step 3: Cross multiply
    120,350.87x = 166,089.39 × 66,635.88
  4. Step 4: Simplify right side
    120,350.87x = 11,067,512,661.31
  5. Step 5: Solve for x
    x = 11,067,512,661.31/120,350.87
  6. Step 6: Final answer
    x = 91,960.39

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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.