Home / 165,180.67-247,855.75-80,939.25

Finding the Fourth Proportional to 165,180.67, 247,855.75 and 80,939.25

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Solution

The fourth proportional to 165,180.67, 247,855.75 and 80,939.25 is: 121,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,180.67 : 247,855.75 = 80,939.25 : x
  2. Step 2: Convert to fraction form
    165,180.67/247,855.75 = 80,939.25/x
  3. Step 3: Cross multiply
    165,180.67x = 247,855.75 × 80,939.25
  4. Step 4: Simplify right side
    165,180.67x = 20,061,258,310.84
  5. Step 5: Solve for x
    x = 20,061,258,310.84/165,180.67
  6. Step 6: Final answer
    x = 121,450.40

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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.