Home / 116,757.38-161,125.36-66,456.38

Finding the Fourth Proportional to 116,757.38, 161,125.36 and 66,456.38

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Solution

The fourth proportional to 116,757.38, 161,125.36 and 66,456.38 is: 91,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,757.38 : 161,125.36 = 66,456.38 : x
  2. Step 2: Convert to fraction form
    116,757.38/161,125.36 = 66,456.38/x
  3. Step 3: Cross multiply
    116,757.38x = 161,125.36 × 66,456.38
  4. Step 4: Simplify right side
    116,757.38x = 10,707,807,180.03
  5. Step 5: Solve for x
    x = 10,707,807,180.03/116,757.38
  6. Step 6: Final answer
    x = 91,709.90

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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.