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Finding the Fourth Proportional to 144,080.60, 198,850.02 and 80,431.64

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Solution

The fourth proportional to 144,080.60, 198,850.02 and 80,431.64 is: 111,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,080.60 : 198,850.02 = 80,431.64 : x
  2. Step 2: Convert to fraction form
    144,080.60/198,850.02 = 80,431.64/x
  3. Step 3: Cross multiply
    144,080.60x = 198,850.02 × 80,431.64
  4. Step 4: Simplify right side
    144,080.60x = 15,993,833,222.63
  5. Step 5: Solve for x
    x = 15,993,833,222.63/144,080.60
  6. Step 6: Final answer
    x = 111,006.15

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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.