Home / 120,981.14-166,958.26-67,281.38

Finding the Fourth Proportional to 120,981.14, 166,958.26 and 67,281.38

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Solution

The fourth proportional to 120,981.14, 166,958.26 and 67,281.38 is: 92,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981.14 : 166,958.26 = 67,281.38 : x
  2. Step 2: Convert to fraction form
    120,981.14/166,958.26 = 67,281.38/x
  3. Step 3: Cross multiply
    120,981.14x = 166,958.26 × 67,281.38
  4. Step 4: Simplify right side
    120,981.14x = 11,233,182,135.20
  5. Step 5: Solve for x
    x = 11,233,182,135.20/120,981.14
  6. Step 6: Final answer
    x = 92,850.69

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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.