Home / 120,950.20-166,910.38-67,240.12

Finding the Fourth Proportional to 120,950.20, 166,910.38 and 67,240.12

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Solution

The fourth proportional to 120,950.20, 166,910.38 and 67,240.12 is: 92,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,950.20 : 166,910.38 = 67,240.12 : x
  2. Step 2: Convert to fraction form
    120,950.20/166,910.38 = 67,240.12/x
  3. Step 3: Cross multiply
    120,950.20x = 166,910.38 × 67,240.12
  4. Step 4: Simplify right side
    120,950.20x = 11,223,073,980.45
  5. Step 5: Solve for x
    x = 11,223,073,980.45/120,950.20
  6. Step 6: Final answer
    x = 92,790.87

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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.