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Finding the Fourth Proportional to 110,879.60, 166,319.40 and 109,713.20

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Solution

The fourth proportional to 110,879.60, 166,319.40 and 109,713.20 is: 164,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,879.60 : 166,319.40 = 109,713.20 : x
  2. Step 2: Convert to fraction form
    110,879.60/166,319.40 = 109,713.20/x
  3. Step 3: Cross multiply
    110,879.60x = 166,319.40 × 109,713.20
  4. Step 4: Simplify right side
    110,879.60x = 18,247,433,596.08
  5. Step 5: Solve for x
    x = 18,247,433,596.08/110,879.60
  6. Step 6: Final answer
    x = 164,569.80

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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.