Home / 165,781.45-248,745.68-86,876.92

Finding the Fourth Proportional to 165,781.45, 248,745.68 and 86,876.92

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Solution

The fourth proportional to 165,781.45, 248,745.68 and 86,876.92 is: 130,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,781.45 : 248,745.68 = 86,876.92 : x
  2. Step 2: Convert to fraction form
    165,781.45/248,745.68 = 86,876.92/x
  3. Step 3: Cross multiply
    165,781.45x = 248,745.68 × 86,876.92
  4. Step 4: Simplify right side
    165,781.45x = 21,610,256,863.59
  5. Step 5: Solve for x
    x = 21,610,256,863.59/165,781.45
  6. Step 6: Final answer
    x = 130,353.89

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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.