Home / 231,556.37-347,337.21-81,691.44

Finding the Fourth Proportional to 231,556.37, 347,337.21 and 81,691.44

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Solution

The fourth proportional to 231,556.37, 347,337.21 and 81,691.44 is: 122,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,556.37 : 347,337.21 = 81,691.44 : x
  2. Step 2: Convert to fraction form
    231,556.37/347,337.21 = 81,691.44/x
  3. Step 3: Cross multiply
    231,556.37x = 347,337.21 × 81,691.44
  4. Step 4: Simplify right side
    231,556.37x = 28,374,475,854.31
  5. Step 5: Solve for x
    x = 28,374,475,854.31/231,556.37
  6. Step 6: Final answer
    x = 122,538.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.