Home / 141,769.95-195,651.36-78,107.73

Finding the Fourth Proportional to 141,769.95, 195,651.36 and 78,107.73

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Solution

The fourth proportional to 141,769.95, 195,651.36 and 78,107.73 is: 107,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,769.95 : 195,651.36 = 78,107.73 : x
  2. Step 2: Convert to fraction form
    141,769.95/195,651.36 = 78,107.73/x
  3. Step 3: Cross multiply
    141,769.95x = 195,651.36 × 78,107.73
  4. Step 4: Simplify right side
    141,769.95x = 15,281,883,601.01
  5. Step 5: Solve for x
    x = 15,281,883,601.01/141,769.95
  6. Step 6: Final answer
    x = 107,793.53

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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.