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Finding the Fourth Proportional to 101,162.35, 151,786.05 and 54,360.55

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Solution

The fourth proportional to 101,162.35, 151,786.05 and 54,360.55 is: 81,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,162.35 : 151,786.05 = 54,360.55 : x
  2. Step 2: Convert to fraction form
    101,162.35/151,786.05 = 54,360.55/x
  3. Step 3: Cross multiply
    101,162.35x = 151,786.05 × 54,360.55
  4. Step 4: Simplify right side
    101,162.35x = 8,251,173,160.33
  5. Step 5: Solve for x
    x = 8,251,173,160.33/101,162.35
  6. Step 6: Final answer
    x = 81,563.68

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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.