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Finding the Fourth Proportional to 144,093.53, 198,848.87 and 80,431.33

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Solution

The fourth proportional to 144,093.53, 198,848.87 and 80,431.33 is: 110,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093.53 : 198,848.87 = 80,431.33 : x
  2. Step 2: Convert to fraction form
    144,093.53/198,848.87 = 80,431.33/x
  3. Step 3: Cross multiply
    144,093.53x = 198,848.87 × 80,431.33
  4. Step 4: Simplify right side
    144,093.53x = 15,993,679,310.70
  5. Step 5: Solve for x
    x = 15,993,679,310.70/144,093.53
  6. Step 6: Final answer
    x = 110,995.12

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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.