Home / 165,845.80-248,871.30-87,016.60

Finding the Fourth Proportional to 165,845.80, 248,871.30 and 87,016.60

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Solution

The fourth proportional to 165,845.80, 248,871.30 and 87,016.60 is: 130,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,845.80 : 248,871.30 = 87,016.60 : x
  2. Step 2: Convert to fraction form
    165,845.80/248,871.30 = 87,016.60/x
  3. Step 3: Cross multiply
    165,845.80x = 248,871.30 × 87,016.60
  4. Step 4: Simplify right side
    165,845.80x = 21,655,934,363.58
  5. Step 5: Solve for x
    x = 21,655,934,363.58/165,845.80
  6. Step 6: Final answer
    x = 130,578.73

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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.