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Finding the Fourth Proportional to 101,127.42, 151,616.25 and 48,486.78

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Solution

The fourth proportional to 101,127.42, 151,616.25 and 48,486.78 is: 72,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,127.42 : 151,616.25 = 48,486.78 : x
  2. Step 2: Convert to fraction form
    101,127.42/151,616.25 = 48,486.78/x
  3. Step 3: Cross multiply
    101,127.42x = 151,616.25 × 48,486.78
  4. Step 4: Simplify right side
    101,127.42x = 7,351,383,758.18
  5. Step 5: Solve for x
    x = 7,351,383,758.18/101,127.42
  6. Step 6: Final answer
    x = 72,694.27

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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.