Home / 110,564.20-165,846.30-77,321.80

Finding the Fourth Proportional to 110,564.20, 165,846.30 and 77,321.80

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Solution

The fourth proportional to 110,564.20, 165,846.30 and 77,321.80 is: 115,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,564.20 : 165,846.30 = 77,321.80 : x
  2. Step 2: Convert to fraction form
    110,564.20/165,846.30 = 77,321.80/x
  3. Step 3: Cross multiply
    110,564.20x = 165,846.30 × 77,321.80
  4. Step 4: Simplify right side
    110,564.20x = 12,823,534,439.34
  5. Step 5: Solve for x
    x = 12,823,534,439.34/110,564.20
  6. Step 6: Final answer
    x = 115,982.70

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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.