Home / 101,255.15-139,771.94-66,794.41

Finding the Fourth Proportional to 101,255.15, 139,771.94 and 66,794.41

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Solution

The fourth proportional to 101,255.15, 139,771.94 and 66,794.41 is: 92,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,255.15 : 139,771.94 = 66,794.41 : x
  2. Step 2: Convert to fraction form
    101,255.15/139,771.94 = 66,794.41/x
  3. Step 3: Cross multiply
    101,255.15x = 139,771.94 × 66,794.41
  4. Step 4: Simplify right side
    101,255.15x = 9,335,984,266.86
  5. Step 5: Solve for x
    x = 9,335,984,266.86/101,255.15
  6. Step 6: Final answer
    x = 92,202.56

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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.