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Finding the Fourth Proportional to 144,608.64, 199,550.08 and 80,945.92

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Solution

The fourth proportional to 144,608.64, 199,550.08 and 80,945.92 is: 111,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,608.64 : 199,550.08 = 80,945.92 : x
  2. Step 2: Convert to fraction form
    144,608.64/199,550.08 = 80,945.92/x
  3. Step 3: Cross multiply
    144,608.64x = 199,550.08 × 80,945.92
  4. Step 4: Simplify right side
    144,608.64x = 16,152,764,811.67
  5. Step 5: Solve for x
    x = 16,152,764,811.67/144,608.64
  6. Step 6: Final answer
    x = 111,699.86

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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.