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Finding the Fourth Proportional to 188,750.86, 260,487.42 and 108,183.57

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Solution

The fourth proportional to 188,750.86, 260,487.42 and 108,183.57 is: 149,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,750.86 : 260,487.42 = 108,183.57 : x
  2. Step 2: Convert to fraction form
    188,750.86/260,487.42 = 108,183.57/x
  3. Step 3: Cross multiply
    188,750.86x = 260,487.42 × 108,183.57
  4. Step 4: Simplify right side
    188,750.86x = 28,180,459,035.69
  5. Step 5: Solve for x
    x = 28,180,459,035.69/188,750.86
  6. Step 6: Final answer
    x = 149,299.76

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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.