Home / 110,747.70-152,778.69-80,486.10

Finding the Fourth Proportional to 110,747.70, 152,778.69 and 80,486.10

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Solution

The fourth proportional to 110,747.70, 152,778.69 and 80,486.10 is: 111,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,747.70 : 152,778.69 = 80,486.10 : x
  2. Step 2: Convert to fraction form
    110,747.70/152,778.69 = 80,486.10/x
  3. Step 3: Cross multiply
    110,747.70x = 152,778.69 × 80,486.10
  4. Step 4: Simplify right side
    110,747.70x = 12,296,560,921.21
  5. Step 5: Solve for x
    x = 12,296,560,921.21/110,747.70
  6. Step 6: Final answer
    x = 111,032.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.