Home / 120,945.35-166,906.57-66,499.82

Finding the Fourth Proportional to 120,945.35, 166,906.57 and 66,499.82

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Solution

The fourth proportional to 120,945.35, 166,906.57 and 66,499.82 is: 91,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,945.35 : 166,906.57 = 66,499.82 : x
  2. Step 2: Convert to fraction form
    120,945.35/166,906.57 = 66,499.82/x
  3. Step 3: Cross multiply
    120,945.35x = 166,906.57 × 66,499.82
  4. Step 4: Simplify right side
    120,945.35x = 11,099,256,027.28
  5. Step 5: Solve for x
    x = 11,099,256,027.28/120,945.35
  6. Step 6: Final answer
    x = 91,770.84

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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.