Home / 140,757.21-194,238.54-77,093.64

Finding the Fourth Proportional to 140,757.21, 194,238.54 and 77,093.64

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Solution

The fourth proportional to 140,757.21, 194,238.54 and 77,093.64 is: 106,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,757.21 : 194,238.54 = 77,093.64 : x
  2. Step 2: Convert to fraction form
    140,757.21/194,238.54 = 77,093.64/x
  3. Step 3: Cross multiply
    140,757.21x = 194,238.54 × 77,093.64
  4. Step 4: Simplify right side
    140,757.21x = 14,974,556,076.89
  5. Step 5: Solve for x
    x = 14,974,556,076.89/140,757.21
  6. Step 6: Final answer
    x = 106,385.71

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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.