Home / 149,729.72-206,624.27-85,197.56

Finding the Fourth Proportional to 149,729.72, 206,624.27 and 85,197.56

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Solution

The fourth proportional to 149,729.72, 206,624.27 and 85,197.56 is: 117,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,729.72 : 206,624.27 = 85,197.56 : x
  2. Step 2: Convert to fraction form
    149,729.72/206,624.27 = 85,197.56/x
  3. Step 3: Cross multiply
    149,729.72x = 206,624.27 × 85,197.56
  4. Step 4: Simplify right side
    149,729.72x = 17,603,882,820.65
  5. Step 5: Solve for x
    x = 17,603,882,820.65/149,729.72
  6. Step 6: Final answer
    x = 117,571.07

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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.