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Finding the Fourth Proportional to 203,873.72, 281,303.77 and 117,801.91

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Solution

The fourth proportional to 203,873.72, 281,303.77 and 117,801.91 is: 162,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,873.72 : 281,303.77 = 117,801.91 : x
  2. Step 2: Convert to fraction form
    203,873.72/281,303.77 = 117,801.91/x
  3. Step 3: Cross multiply
    203,873.72x = 281,303.77 × 117,801.91
  4. Step 4: Simplify right side
    203,873.72x = 33,138,119,400.67
  5. Step 5: Solve for x
    x = 33,138,119,400.67/203,873.72
  6. Step 6: Final answer
    x = 162,542.38

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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.