Home / 120,986.39-166,960.67-67,268.21

Finding the Fourth Proportional to 120,986.39, 166,960.67 and 67,268.21

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Solution

The fourth proportional to 120,986.39, 166,960.67 and 67,268.21 is: 92,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,986.39 : 166,960.67 = 67,268.21 : x
  2. Step 2: Convert to fraction form
    120,986.39/166,960.67 = 67,268.21/x
  3. Step 3: Cross multiply
    120,986.39x = 166,960.67 × 67,268.21
  4. Step 4: Simplify right side
    120,986.39x = 11,231,144,240.16
  5. Step 5: Solve for x
    x = 11,231,144,240.16/120,986.39
  6. Step 6: Final answer
    x = 92,829.81

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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.