Home / 126,796.47-190,183.70-76,861.86

Finding the Fourth Proportional to 126,796.47, 190,183.70 and 76,861.86

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Solution

The fourth proportional to 126,796.47, 190,183.70 and 76,861.86 is: 115,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,796.47 : 190,183.70 = 76,861.86 : x
  2. Step 2: Convert to fraction form
    126,796.47/190,183.70 = 76,861.86/x
  3. Step 3: Cross multiply
    126,796.47x = 190,183.70 × 76,861.86
  4. Step 4: Simplify right side
    126,796.47x = 14,617,872,539.37
  5. Step 5: Solve for x
    x = 14,617,872,539.37/126,796.47
  6. Step 6: Final answer
    x = 115,286.12

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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.