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Finding the Fourth Proportional to 144,555.36, 199,481.84 and 80,020.64

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Solution

The fourth proportional to 144,555.36, 199,481.84 and 80,020.64 is: 110,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,555.36 : 199,481.84 = 80,020.64 : x
  2. Step 2: Convert to fraction form
    144,555.36/199,481.84 = 80,020.64/x
  3. Step 3: Cross multiply
    144,555.36x = 199,481.84 × 80,020.64
  4. Step 4: Simplify right side
    144,555.36x = 15,962,664,505.18
  5. Step 5: Solve for x
    x = 15,962,664,505.18/144,555.36
  6. Step 6: Final answer
    x = 110,425.96

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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.