Home / 203,556.13-280,920.20-117,530.87

Finding the Fourth Proportional to 203,556.13, 280,920.20 and 117,530.87

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Solution

The fourth proportional to 203,556.13, 280,920.20 and 117,530.87 is: 162,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,556.13 : 280,920.20 = 117,530.87 : x
  2. Step 2: Convert to fraction form
    203,556.13/280,920.20 = 117,530.87/x
  3. Step 3: Cross multiply
    203,556.13x = 280,920.20 × 117,530.87
  4. Step 4: Simplify right side
    203,556.13x = 33,016,793,514.32
  5. Step 5: Solve for x
    x = 33,016,793,514.32/203,556.13
  6. Step 6: Final answer
    x = 162,199.95

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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.