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Finding the Fourth Proportional to 144,183.52, 198,944.40 and 80,511.52

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Solution

The fourth proportional to 144,183.52, 198,944.40 and 80,511.52 is: 111,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,183.52 : 198,944.40 = 80,511.52 : x
  2. Step 2: Convert to fraction form
    144,183.52/198,944.40 = 80,511.52/x
  3. Step 3: Cross multiply
    144,183.52x = 198,944.40 × 80,511.52
  4. Step 4: Simplify right side
    144,183.52x = 16,017,316,039.49
  5. Step 5: Solve for x
    x = 16,017,316,039.49/144,183.52
  6. Step 6: Final answer
    x = 111,089.78

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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.