Home / 140,205.54-193,494.69-79,778.73

Finding the Fourth Proportional to 140,205.54, 193,494.69 and 79,778.73

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Solution

The fourth proportional to 140,205.54, 193,494.69 and 79,778.73 is: 110,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,205.54 : 193,494.69 = 79,778.73 : x
  2. Step 2: Convert to fraction form
    140,205.54/193,494.69 = 79,778.73/x
  3. Step 3: Cross multiply
    140,205.54x = 193,494.69 × 79,778.73
  4. Step 4: Simplify right side
    140,205.54x = 15,436,760,629.94
  5. Step 5: Solve for x
    x = 15,436,760,629.94/140,205.54
  6. Step 6: Final answer
    x = 110,100.93

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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.