Home / 203,193.20-280,543.64-126,828.64

Finding the Fourth Proportional to 203,193.20, 280,543.64 and 126,828.64

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Solution

The fourth proportional to 203,193.20, 280,543.64 and 126,828.64 is: 175,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,193.20 : 280,543.64 = 126,828.64 : x
  2. Step 2: Convert to fraction form
    203,193.20/280,543.64 = 126,828.64/x
  3. Step 3: Cross multiply
    203,193.20x = 280,543.64 × 126,828.64
  4. Step 4: Simplify right side
    203,193.20x = 35,580,968,321.85
  5. Step 5: Solve for x
    x = 35,580,968,321.85/203,193.20
  6. Step 6: Final answer
    x = 175,109.05

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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.