Home / 116,731.45-161,082.79-68,989.24

Finding the Fourth Proportional to 116,731.45, 161,082.79 and 68,989.24

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Solution

The fourth proportional to 116,731.45, 161,082.79 and 68,989.24 is: 95,201.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,731.45 : 161,082.79 = 68,989.24 : x
  2. Step 2: Convert to fraction form
    116,731.45/161,082.79 = 68,989.24/x
  3. Step 3: Cross multiply
    116,731.45x = 161,082.79 × 68,989.24
  4. Step 4: Simplify right side
    116,731.45x = 11,112,979,259.18
  5. Step 5: Solve for x
    x = 11,112,979,259.18/116,731.45
  6. Step 6: Final answer
    x = 95,201.24

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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.