Home / 116,921.24-161,354.94-66,617

Finding the Fourth Proportional to 116,921.24, 161,354.94 and 66,617

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Solution

The fourth proportional to 116,921.24, 161,354.94 and 66,617 is: 91,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,921.24 : 161,354.94 = 66,617 : x
  2. Step 2: Convert to fraction form
    116,921.24/161,354.94 = 66,617/x
  3. Step 3: Cross multiply
    116,921.24x = 161,354.94 × 66,617
  4. Step 4: Simplify right side
    116,921.24x = 10,748,982,037.98
  5. Step 5: Solve for x
    x = 10,748,982,037.98/116,921.24
  6. Step 6: Final answer
    x = 91,933.53

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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.