Home / 120,324.45-166,046.64-66,611.73

Finding the Fourth Proportional to 120,324.45, 166,046.64 and 66,611.73

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Solution

The fourth proportional to 120,324.45, 166,046.64 and 66,611.73 is: 91,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,324.45 : 166,046.64 = 66,611.73 : x
  2. Step 2: Convert to fraction form
    120,324.45/166,046.64 = 66,611.73/x
  3. Step 3: Cross multiply
    120,324.45x = 166,046.64 × 66,611.73
  4. Step 4: Simplify right side
    120,324.45x = 11,060,653,951.09
  5. Step 5: Solve for x
    x = 11,060,653,951.09/120,324.45
  6. Step 6: Final answer
    x = 91,923.58

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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.