Home / 104,939.28-144,811.96-57,191.60

Finding the Fourth Proportional to 104,939.28, 144,811.96 and 57,191.60

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Solution

The fourth proportional to 104,939.28, 144,811.96 and 57,191.60 is: 78,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,939.28 : 144,811.96 = 57,191.60 : x
  2. Step 2: Convert to fraction form
    104,939.28/144,811.96 = 57,191.60/x
  3. Step 3: Cross multiply
    104,939.28x = 144,811.96 × 57,191.60
  4. Step 4: Simplify right side
    104,939.28x = 8,282,027,691.54
  5. Step 5: Solve for x
    x = 8,282,027,691.54/104,939.28
  6. Step 6: Final answer
    x = 78,922.09

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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.