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Finding the Fourth Proportional to 136,483.80, 204,531.30 and 100,665.60

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Solution

The fourth proportional to 136,483.80, 204,531.30 and 100,665.60 is: 150,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,483.80 : 204,531.30 = 100,665.60 : x
  2. Step 2: Convert to fraction form
    136,483.80/204,531.30 = 100,665.60/x
  3. Step 3: Cross multiply
    136,483.80x = 204,531.30 × 100,665.60
  4. Step 4: Simplify right side
    136,483.80x = 20,589,266,033.28
  5. Step 5: Solve for x
    x = 20,589,266,033.28/136,483.80
  6. Step 6: Final answer
    x = 150,855.02

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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.