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Finding the Fourth Proportional to 110,366.80, 165,550.20 and 86,747.20

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Solution

The fourth proportional to 110,366.80, 165,550.20 and 86,747.20 is: 130,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,366.80 : 165,550.20 = 86,747.20 : x
  2. Step 2: Convert to fraction form
    110,366.80/165,550.20 = 86,747.20/x
  3. Step 3: Cross multiply
    110,366.80x = 165,550.20 × 86,747.20
  4. Step 4: Simplify right side
    110,366.80x = 14,361,016,309.44
  5. Step 5: Solve for x
    x = 14,361,016,309.44/110,366.80
  6. Step 6: Final answer
    x = 130,120.80

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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.