Home / 116,839.26-161,242.85-65,854.11

Finding the Fourth Proportional to 116,839.26, 161,242.85 and 65,854.11

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Solution

The fourth proportional to 116,839.26, 161,242.85 and 65,854.11 is: 90,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,839.26 : 161,242.85 = 65,854.11 : x
  2. Step 2: Convert to fraction form
    116,839.26/161,242.85 = 65,854.11/x
  3. Step 3: Cross multiply
    116,839.26x = 161,242.85 × 65,854.11
  4. Step 4: Simplify right side
    116,839.26x = 10,618,505,149.91
  5. Step 5: Solve for x
    x = 10,618,505,149.91/116,839.26
  6. Step 6: Final answer
    x = 90,881.31

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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.