Home / 103,197.87-154,796.97-28,319.04

Finding the Fourth Proportional to 103,197.87, 154,796.97 and 28,319.04

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Solution

The fourth proportional to 103,197.87, 154,796.97 and 28,319.04 is: 42,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,197.87 : 154,796.97 = 28,319.04 : x
  2. Step 2: Convert to fraction form
    103,197.87/154,796.97 = 28,319.04/x
  3. Step 3: Cross multiply
    103,197.87x = 154,796.97 × 28,319.04
  4. Step 4: Simplify right side
    103,197.87x = 4,383,701,585.31
  5. Step 5: Solve for x
    x = 4,383,701,585.31/103,197.87
  6. Step 6: Final answer
    x = 42,478.61

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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.