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Finding the Fourth Proportional to 144,573.96, 199,513.08 and 80,917.68

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Solution

The fourth proportional to 144,573.96, 199,513.08 and 80,917.68 is: 111,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,573.96 : 199,513.08 = 80,917.68 : x
  2. Step 2: Convert to fraction form
    144,573.96/199,513.08 = 80,917.68/x
  3. Step 3: Cross multiply
    144,573.96x = 199,513.08 × 80,917.68
  4. Step 4: Simplify right side
    144,573.96x = 16,144,135,563.25
  5. Step 5: Solve for x
    x = 16,144,135,563.25/144,573.96
  6. Step 6: Final answer
    x = 111,666.97

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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.