Home / 116,806.32-161,193.96-66,505.68

Finding the Fourth Proportional to 116,806.32, 161,193.96 and 66,505.68

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Solution

The fourth proportional to 116,806.32, 161,193.96 and 66,505.68 is: 91,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,806.32 : 161,193.96 = 66,505.68 : x
  2. Step 2: Convert to fraction form
    116,806.32/161,193.96 = 66,505.68/x
  3. Step 3: Cross multiply
    116,806.32x = 161,193.96 × 66,505.68
  4. Step 4: Simplify right side
    116,806.32x = 10,720,313,921.69
  5. Step 5: Solve for x
    x = 10,720,313,921.69/116,806.32
  6. Step 6: Final answer
    x = 91,778.54

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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.