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Finding the Fourth Proportional to 144,182.96, 198,975.48 and 80,520.84

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Solution

The fourth proportional to 144,182.96, 198,975.48 and 80,520.84 is: 111,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,182.96 : 198,975.48 = 80,520.84 : x
  2. Step 2: Convert to fraction form
    144,182.96/198,975.48 = 80,520.84/x
  3. Step 3: Cross multiply
    144,182.96x = 198,975.48 × 80,520.84
  4. Step 4: Simplify right side
    144,182.96x = 16,021,672,789.00
  5. Step 5: Solve for x
    x = 16,021,672,789.00/144,182.96
  6. Step 6: Final answer
    x = 111,120.43

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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.