Home / 190,128.26-285,183.74-63,758.78

Finding the Fourth Proportional to 190,128.26, 285,183.74 and 63,758.78

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Solution

The fourth proportional to 190,128.26, 285,183.74 and 63,758.78 is: 95,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,128.26 : 285,183.74 = 63,758.78 : x
  2. Step 2: Convert to fraction form
    190,128.26/285,183.74 = 63,758.78/x
  3. Step 3: Cross multiply
    190,128.26x = 285,183.74 × 63,758.78
  4. Step 4: Simplify right side
    190,128.26x = 18,182,967,019.44
  5. Step 5: Solve for x
    x = 18,182,967,019.44/190,128.26
  6. Step 6: Final answer
    x = 95,635.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.