Home / 120,349.62-166,087.66-66,634.64

Finding the Fourth Proportional to 120,349.62, 166,087.66 and 66,634.64

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Solution

The fourth proportional to 120,349.62, 166,087.66 and 66,634.64 is: 91,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,349.62 : 166,087.66 = 66,634.64 : x
  2. Step 2: Convert to fraction form
    120,349.62/166,087.66 = 66,634.64/x
  3. Step 3: Cross multiply
    120,349.62x = 166,087.66 × 66,634.64
  4. Step 4: Simplify right side
    120,349.62x = 11,067,190,602.10
  5. Step 5: Solve for x
    x = 11,067,190,602.10/120,349.62
  6. Step 6: Final answer
    x = 91,958.67

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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.