Home / 231,086.22-318,867.23-129,098.93

Finding the Fourth Proportional to 231,086.22, 318,867.23 and 129,098.93

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Solution

The fourth proportional to 231,086.22, 318,867.23 and 129,098.93 is: 178,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,086.22 : 318,867.23 = 129,098.93 : x
  2. Step 2: Convert to fraction form
    231,086.22/318,867.23 = 129,098.93/x
  3. Step 3: Cross multiply
    231,086.22x = 318,867.23 × 129,098.93
  4. Step 4: Simplify right side
    231,086.22x = 41,165,415,965.23
  5. Step 5: Solve for x
    x = 41,165,415,965.23/231,086.22
  6. Step 6: Final answer
    x = 178,138.77

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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.