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Finding the Fourth Proportional to 101,419.56, 151,933.86 and 56,910.60

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Solution

The fourth proportional to 101,419.56, 151,933.86 and 56,910.60 is: 85,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,419.56 : 151,933.86 = 56,910.60 : x
  2. Step 2: Convert to fraction form
    101,419.56/151,933.86 = 56,910.60/x
  3. Step 3: Cross multiply
    101,419.56x = 151,933.86 × 56,910.60
  4. Step 4: Simplify right side
    101,419.56x = 8,646,647,132.92
  5. Step 5: Solve for x
    x = 8,646,647,132.92/101,419.56
  6. Step 6: Final answer
    x = 85,256.21

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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.