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Finding the Fourth Proportional to 100,165.86, 150,027.32 and 68,500.88

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Solution

The fourth proportional to 100,165.86, 150,027.32 and 68,500.88 is: 102,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,165.86 : 150,027.32 = 68,500.88 : x
  2. Step 2: Convert to fraction form
    100,165.86/150,027.32 = 68,500.88/x
  3. Step 3: Cross multiply
    100,165.86x = 150,027.32 × 68,500.88
  4. Step 4: Simplify right side
    100,165.86x = 10,277,003,444.04
  5. Step 5: Solve for x
    x = 10,277,003,444.04/100,165.86
  6. Step 6: Final answer
    x = 102,599.86

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1.5x scale

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.