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Finding the Fourth Proportional to 144,311.96, 199,149.90 and 80,649.74

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Solution

The fourth proportional to 144,311.96, 199,149.90 and 80,649.74 is: 111,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,311.96 : 199,149.90 = 80,649.74 : x
  2. Step 2: Convert to fraction form
    144,311.96/199,149.90 = 80,649.74/x
  3. Step 3: Cross multiply
    144,311.96x = 199,149.90 × 80,649.74
  4. Step 4: Simplify right side
    144,311.96x = 16,061,387,656.03
  5. Step 5: Solve for x
    x = 16,061,387,656.03/144,311.96
  6. Step 6: Final answer
    x = 111,296.30

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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.