Home / 116,972.37-161,231.45-91,433.66

Finding the Fourth Proportional to 116,972.37, 161,231.45 and 91,433.66

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Solution

The fourth proportional to 116,972.37, 161,231.45 and 91,433.66 is: 126,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,972.37 : 161,231.45 = 91,433.66 : x
  2. Step 2: Convert to fraction form
    116,972.37/161,231.45 = 91,433.66/x
  3. Step 3: Cross multiply
    116,972.37x = 161,231.45 × 91,433.66
  4. Step 4: Simplify right side
    116,972.37x = 14,741,980,317.28
  5. Step 5: Solve for x
    x = 14,741,980,317.28/116,972.37
  6. Step 6: Final answer
    x = 126,029.59

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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.