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Finding the Fourth Proportional to 104,645.38, 144,790.92 and 91,244.54

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Solution

The fourth proportional to 104,645.38, 144,790.92 and 91,244.54 is: 126,249.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.38 : 144,790.92 = 91,244.54 : x
  2. Step 2: Convert to fraction form
    104,645.38/144,790.92 = 91,244.54/x
  3. Step 3: Cross multiply
    104,645.38x = 144,790.92 × 91,244.54
  4. Step 4: Simplify right side
    104,645.38x = 13,211,380,891.58
  5. Step 5: Solve for x
    x = 13,211,380,891.58/104,645.38
  6. Step 6: Final answer
    x = 126,249.06

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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.