Home / 120,350.62-166,089.04-66,635.64

Finding the Fourth Proportional to 120,350.62, 166,089.04 and 66,635.64

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Solution

The fourth proportional to 120,350.62, 166,089.04 and 66,635.64 is: 91,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.62 : 166,089.04 = 66,635.64 : x
  2. Step 2: Convert to fraction form
    120,350.62/166,089.04 = 66,635.64/x
  3. Step 3: Cross multiply
    120,350.62x = 166,089.04 × 66,635.64
  4. Step 4: Simplify right side
    120,350.62x = 11,067,449,477.39
  5. Step 5: Solve for x
    x = 11,067,449,477.39/120,350.62
  6. Step 6: Final answer
    x = 91,960.05

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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.