Home / 120,326.96-166,049.12-66,610.80

Finding the Fourth Proportional to 120,326.96, 166,049.12 and 66,610.80

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Solution

The fourth proportional to 120,326.96, 166,049.12 and 66,610.80 is: 91,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,326.96 : 166,049.12 = 66,610.80 : x
  2. Step 2: Convert to fraction form
    120,326.96/166,049.12 = 66,610.80/x
  3. Step 3: Cross multiply
    120,326.96x = 166,049.12 × 66,610.80
  4. Step 4: Simplify right side
    120,326.96x = 11,060,664,722.50
  5. Step 5: Solve for x
    x = 11,060,664,722.50/120,326.96
  6. Step 6: Final answer
    x = 91,921.75

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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.