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Finding the Fourth Proportional to 179,099.08, 247,129.32 and 103,633

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Solution

The fourth proportional to 179,099.08, 247,129.32 and 103,633 is: 142,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,099.08 : 247,129.32 = 103,633 : x
  2. Step 2: Convert to fraction form
    179,099.08/247,129.32 = 103,633/x
  3. Step 3: Cross multiply
    179,099.08x = 247,129.32 × 103,633
  4. Step 4: Simplify right side
    179,099.08x = 25,610,752,819.56
  5. Step 5: Solve for x
    x = 25,610,752,819.56/179,099.08
  6. Step 6: Final answer
    x = 142,997.68

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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.