Home / 120,371.00-166,112.78-66,659.49

Finding the Fourth Proportional to 120,371.00, 166,112.78 and 66,659.49

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Solution

The fourth proportional to 120,371.00, 166,112.78 and 66,659.49 is: 91,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.00 : 166,112.78 = 66,659.49 : x
  2. Step 2: Convert to fraction form
    120,371.00/166,112.78 = 66,659.49/x
  3. Step 3: Cross multiply
    120,371.00x = 166,112.78 × 66,659.49
  4. Step 4: Simplify right side
    120,371.00x = 11,072,992,863.98
  5. Step 5: Solve for x
    x = 11,072,992,863.98/120,371.00
  6. Step 6: Final answer
    x = 91,990.54

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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.