Home / 120,999.27-166,982.85-67,286.55

Finding the Fourth Proportional to 120,999.27, 166,982.85 and 67,286.55

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Solution

The fourth proportional to 120,999.27, 166,982.85 and 67,286.55 is: 92,857.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,999.27 : 166,982.85 = 67,286.55 : x
  2. Step 2: Convert to fraction form
    120,999.27/166,982.85 = 67,286.55/x
  3. Step 3: Cross multiply
    120,999.27x = 166,982.85 × 67,286.55
  4. Step 4: Simplify right side
    120,999.27x = 11,235,699,885.67
  5. Step 5: Solve for x
    x = 11,235,699,885.67/120,999.27
  6. Step 6: Final answer
    x = 92,857.58

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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.