Home / 103,197.38-154,796.22-28,318.55

Finding the Fourth Proportional to 103,197.38, 154,796.22 and 28,318.55

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Solution

The fourth proportional to 103,197.38, 154,796.22 and 28,318.55 is: 42,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,197.38 : 154,796.22 = 28,318.55 : x
  2. Step 2: Convert to fraction form
    103,197.38/154,796.22 = 28,318.55/x
  3. Step 3: Cross multiply
    103,197.38x = 154,796.22 × 28,318.55
  4. Step 4: Simplify right side
    103,197.38x = 4,383,603,721.90
  5. Step 5: Solve for x
    x = 4,383,603,721.90/103,197.38
  6. Step 6: Final answer
    x = 42,477.86

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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.