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Finding the Fourth Proportional to 144,305.96, 199,142.96 and 80,644.82

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Solution

The fourth proportional to 144,305.96, 199,142.96 and 80,644.82 is: 111,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,305.96 : 199,142.96 = 80,644.82 : x
  2. Step 2: Convert to fraction form
    144,305.96/199,142.96 = 80,644.82/x
  3. Step 3: Cross multiply
    144,305.96x = 199,142.96 × 80,644.82
  4. Step 4: Simplify right side
    144,305.96x = 16,059,846,764.53
  5. Step 5: Solve for x
    x = 16,059,846,764.53/144,305.96
  6. Step 6: Final answer
    x = 111,290.26

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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.