Home / 165,134.80-247,529.04-80,778.52

Finding the Fourth Proportional to 165,134.80, 247,529.04 and 80,778.52

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Solution

The fourth proportional to 165,134.80, 247,529.04 and 80,778.52 is: 121,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,134.80 : 247,529.04 = 80,778.52 : x
  2. Step 2: Convert to fraction form
    165,134.80/247,529.04 = 80,778.52/x
  3. Step 3: Cross multiply
    165,134.80x = 247,529.04 × 80,778.52
  4. Step 4: Simplify right side
    165,134.80x = 19,995,029,508.22
  5. Step 5: Solve for x
    x = 19,995,029,508.22/165,134.80
  6. Step 6: Final answer
    x = 121,083.08

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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.