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Finding the Fourth Proportional to 101,128, 151,692 and 27,256

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Solution

The fourth proportional to 101,128, 151,692 and 27,256 is: 40,884

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,128 : 151,692 = 27,256 : x
  2. Step 2: Convert to fraction form
    101,128/151,692 = 27,256/x
  3. Step 3: Cross multiply
    101,128x = 151,692 × 27,256
  4. Step 4: Simplify right side
    101,128x = 4,134,517,152
  5. Step 5: Solve for x
    x = 4,134,517,152/101,128
  6. Step 6: Final answer
    x = 40,884

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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.