Home / 120,694.11-166,559.67-66,982.60

Finding the Fourth Proportional to 120,694.11, 166,559.67 and 66,982.60

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Solution

The fourth proportional to 120,694.11, 166,559.67 and 66,982.60 is: 92,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,694.11 : 166,559.67 = 66,982.60 : x
  2. Step 2: Convert to fraction form
    120,694.11/166,559.67 = 66,982.60/x
  3. Step 3: Cross multiply
    120,694.11x = 166,559.67 × 66,982.60
  4. Step 4: Simplify right side
    120,694.11x = 11,156,599,751.74
  5. Step 5: Solve for x
    x = 11,156,599,751.74/120,694.11
  6. Step 6: Final answer
    x = 92,436.99

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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.