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Finding the Fourth Proportional to 101,562.17, 140,155.92 and 55,621.60

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Solution

The fourth proportional to 101,562.17, 140,155.92 and 55,621.60 is: 76,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,562.17 : 140,155.92 = 55,621.60 : x
  2. Step 2: Convert to fraction form
    101,562.17/140,155.92 = 55,621.60/x
  3. Step 3: Cross multiply
    101,562.17x = 140,155.92 × 55,621.60
  4. Step 4: Simplify right side
    101,562.17x = 7,795,695,540.98
  5. Step 5: Solve for x
    x = 7,795,695,540.98/101,562.17
  6. Step 6: Final answer
    x = 76,757.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.