Home / 144,293.22-199,129.05-80,633.70

Finding the Fourth Proportional to 144,293.22, 199,129.05 and 80,633.70

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Solution

The fourth proportional to 144,293.22, 199,129.05 and 80,633.70 is: 111,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293.22 : 199,129.05 = 80,633.70 : x
  2. Step 2: Convert to fraction form
    144,293.22/199,129.05 = 80,633.70/x
  3. Step 3: Cross multiply
    144,293.22x = 199,129.05 × 80,633.70
  4. Step 4: Simplify right side
    144,293.22x = 16,056,512,078.99
  5. Step 5: Solve for x
    x = 16,056,512,078.99/144,293.22
  6. Step 6: Final answer
    x = 111,276.97

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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.