Home / 120,959.20-166,910.94-67,235.50

Finding the Fourth Proportional to 120,959.20, 166,910.94 and 67,235.50

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Solution

The fourth proportional to 120,959.20, 166,910.94 and 67,235.50 is: 92,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.20 : 166,910.94 = 67,235.50 : x
  2. Step 2: Convert to fraction form
    120,959.20/166,910.94 = 67,235.50/x
  3. Step 3: Cross multiply
    120,959.20x = 166,910.94 × 67,235.50
  4. Step 4: Simplify right side
    120,959.20x = 11,222,340,506.37
  5. Step 5: Solve for x
    x = 11,222,340,506.37/120,959.20
  6. Step 6: Final answer
    x = 92,777.90

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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.