Home / 102,918.20-154,377.30-100,844.60

Finding the Fourth Proportional to 102,918.20, 154,377.30 and 100,844.60

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Solution

The fourth proportional to 102,918.20, 154,377.30 and 100,844.60 is: 151,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,918.20 : 154,377.30 = 100,844.60 : x
  2. Step 2: Convert to fraction form
    102,918.20/154,377.30 = 100,844.60/x
  3. Step 3: Cross multiply
    102,918.20x = 154,377.30 × 100,844.60
  4. Step 4: Simplify right side
    102,918.20x = 15,568,117,067.58
  5. Step 5: Solve for x
    x = 15,568,117,067.58/102,918.20
  6. Step 6: Final answer
    x = 151,266.90

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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.