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Finding the Fourth Proportional to 147,027.60, 220,606.20 and 68,101.20

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Solution

The fourth proportional to 147,027.60, 220,606.20 and 68,101.20 is: 102,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,027.60 : 220,606.20 = 68,101.20 : x
  2. Step 2: Convert to fraction form
    147,027.60/220,606.20 = 68,101.20/x
  3. Step 3: Cross multiply
    147,027.60x = 220,606.20 × 68,101.20
  4. Step 4: Simplify right side
    147,027.60x = 15,023,546,947.44
  5. Step 5: Solve for x
    x = 15,023,546,947.44/147,027.60
  6. Step 6: Final answer
    x = 102,181.81

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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.