Home / 203,195.20-280,546.40-126,830.64

Finding the Fourth Proportional to 203,195.20, 280,546.40 and 126,830.64

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Solution

The fourth proportional to 203,195.20, 280,546.40 and 126,830.64 is: 175,111.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,195.20 : 280,546.40 = 126,830.64 : x
  2. Step 2: Convert to fraction form
    203,195.20/280,546.40 = 126,830.64/x
  3. Step 3: Cross multiply
    203,195.20x = 280,546.40 × 126,830.64
  4. Step 4: Simplify right side
    203,195.20x = 35,581,879,461.70
  5. Step 5: Solve for x
    x = 35,581,879,461.70/203,195.20
  6. Step 6: Final answer
    x = 175,111.81

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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.