Home / 107,640.46-161,460.79-51,467.36

Finding the Fourth Proportional to 107,640.46, 161,460.79 and 51,467.36

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Solution

The fourth proportional to 107,640.46, 161,460.79 and 51,467.36 is: 77,201.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,640.46 : 161,460.79 = 51,467.36 : x
  2. Step 2: Convert to fraction form
    107,640.46/161,460.79 = 51,467.36/x
  3. Step 3: Cross multiply
    107,640.46x = 161,460.79 × 51,467.36
  4. Step 4: Simplify right side
    107,640.46x = 8,309,960,604.81
  5. Step 5: Solve for x
    x = 8,309,960,604.81/107,640.46
  6. Step 6: Final answer
    x = 77,201.09

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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.