Home / 129,084.22-177,650.85-109,202.50

Finding the Fourth Proportional to 129,084.22, 177,650.85 and 109,202.50

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Solution

The fourth proportional to 129,084.22, 177,650.85 and 109,202.50 is: 150,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,084.22 : 177,650.85 = 109,202.50 : x
  2. Step 2: Convert to fraction form
    129,084.22/177,650.85 = 109,202.50/x
  3. Step 3: Cross multiply
    129,084.22x = 177,650.85 × 109,202.50
  4. Step 4: Simplify right side
    129,084.22x = 19,399,916,947.13
  5. Step 5: Solve for x
    x = 19,399,916,947.13/129,084.22
  6. Step 6: Final answer
    x = 150,288.83

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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.