Home / 110,440.20-165,660.30-40,321.80

Finding the Fourth Proportional to 110,440.20, 165,660.30 and 40,321.80

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Solution

The fourth proportional to 110,440.20, 165,660.30 and 40,321.80 is: 60,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,440.20 : 165,660.30 = 40,321.80 : x
  2. Step 2: Convert to fraction form
    110,440.20/165,660.30 = 40,321.80/x
  3. Step 3: Cross multiply
    110,440.20x = 165,660.30 × 40,321.80
  4. Step 4: Simplify right side
    110,440.20x = 6,679,721,484.54
  5. Step 5: Solve for x
    x = 6,679,721,484.54/110,440.20
  6. Step 6: Final answer
    x = 60,482.70

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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.