Home / 107,844.78-161,619.54-68,429.58

Finding the Fourth Proportional to 107,844.78, 161,619.54 and 68,429.58

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Solution

The fourth proportional to 107,844.78, 161,619.54 and 68,429.58 is: 102,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,844.78 : 161,619.54 = 68,429.58 : x
  2. Step 2: Convert to fraction form
    107,844.78/161,619.54 = 68,429.58/x
  3. Step 3: Cross multiply
    107,844.78x = 161,619.54 × 68,429.58
  4. Step 4: Simplify right side
    107,844.78x = 11,059,557,241.99
  5. Step 5: Solve for x
    x = 11,059,557,241.99/107,844.78
  6. Step 6: Final answer
    x = 102,550.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.