Home / 120,839.44-166,756.20-67,122.32

Finding the Fourth Proportional to 120,839.44, 166,756.20 and 67,122.32

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Solution

The fourth proportional to 120,839.44, 166,756.20 and 67,122.32 is: 92,627.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,839.44 : 166,756.20 = 67,122.32 : x
  2. Step 2: Convert to fraction form
    120,839.44/166,756.20 = 67,122.32/x
  3. Step 3: Cross multiply
    120,839.44x = 166,756.20 × 67,122.32
  4. Step 4: Simplify right side
    120,839.44x = 11,193,063,018.38
  5. Step 5: Solve for x
    x = 11,193,063,018.38/120,839.44
  6. Step 6: Final answer
    x = 92,627.56

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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.