Home / 445,930.06-668,917.64-126,105.00

Finding the Fourth Proportional to 445,930.06, 668,917.64 and 126,105.00

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Solution

The fourth proportional to 445,930.06, 668,917.64 and 126,105.00 is: 189,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,930.06 : 668,917.64 = 126,105.00 : x
  2. Step 2: Convert to fraction form
    445,930.06/668,917.64 = 126,105.00/x
  3. Step 3: Cross multiply
    445,930.06x = 668,917.64 × 126,105.00
  4. Step 4: Simplify right side
    445,930.06x = 84,353,860,561.68
  5. Step 5: Solve for x
    x = 84,353,860,561.68/445,930.06
  6. Step 6: Final answer
    x = 189,163.88

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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.