Home / 116,757.36-161,095.50-71,418.78

Finding the Fourth Proportional to 116,757.36, 161,095.50 and 71,418.78

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Solution

The fourth proportional to 116,757.36, 161,095.50 and 71,418.78 is: 98,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,757.36 : 161,095.50 = 71,418.78 : x
  2. Step 2: Convert to fraction form
    116,757.36/161,095.50 = 71,418.78/x
  3. Step 3: Cross multiply
    116,757.36x = 161,095.50 × 71,418.78
  4. Step 4: Simplify right side
    116,757.36x = 11,505,244,073.49
  5. Step 5: Solve for x
    x = 11,505,244,073.49/116,757.36
  6. Step 6: Final answer
    x = 98,539.78

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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.