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Finding the Fourth Proportional to 103,540.01, 155,310.22 and 28,660.37

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Solution

The fourth proportional to 103,540.01, 155,310.22 and 28,660.37 is: 42,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,540.01 : 155,310.22 = 28,660.37 : x
  2. Step 2: Convert to fraction form
    103,540.01/155,310.22 = 28,660.37/x
  3. Step 3: Cross multiply
    103,540.01x = 155,310.22 × 28,660.37
  4. Step 4: Simplify right side
    103,540.01x = 4,451,247,629.26
  5. Step 5: Solve for x
    x = 4,451,247,629.26/103,540.01
  6. Step 6: Final answer
    x = 42,990.61

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1.5x scale

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.