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Finding the Fourth Proportional to 110,758.60, 166,137.90 and 68,768.20

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Solution

The fourth proportional to 110,758.60, 166,137.90 and 68,768.20 is: 103,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,758.60 : 166,137.90 = 68,768.20 : x
  2. Step 2: Convert to fraction form
    110,758.60/166,137.90 = 68,768.20/x
  3. Step 3: Cross multiply
    110,758.60x = 166,137.90 × 68,768.20
  4. Step 4: Simplify right side
    110,758.60x = 11,425,004,334.78
  5. Step 5: Solve for x
    x = 11,425,004,334.78/110,758.60
  6. Step 6: Final answer
    x = 103,152.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.