Home / 189,591.03-261,608.94-108,989.15

Finding the Fourth Proportional to 189,591.03, 261,608.94 and 108,989.15

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Solution

The fourth proportional to 189,591.03, 261,608.94 and 108,989.15 is: 150,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,591.03 : 261,608.94 = 108,989.15 : x
  2. Step 2: Convert to fraction form
    189,591.03/261,608.94 = 108,989.15/x
  3. Step 3: Cross multiply
    189,591.03x = 261,608.94 × 108,989.15
  4. Step 4: Simplify right side
    189,591.03x = 28,512,534,694.96
  5. Step 5: Solve for x
    x = 28,512,534,694.96/189,591.03
  6. Step 6: Final answer
    x = 150,389.68

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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.