Home / 231,131.64-318,998.26-140,515.96

Finding the Fourth Proportional to 231,131.64, 318,998.26 and 140,515.96

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Solution

The fourth proportional to 231,131.64, 318,998.26 and 140,515.96 is: 193,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,131.64 : 318,998.26 = 140,515.96 : x
  2. Step 2: Convert to fraction form
    231,131.64/318,998.26 = 140,515.96/x
  3. Step 3: Cross multiply
    231,131.64x = 318,998.26 × 140,515.96
  4. Step 4: Simplify right side
    231,131.64x = 44,824,346,742.23
  5. Step 5: Solve for x
    x = 44,824,346,742.23/231,131.64
  6. Step 6: Final answer
    x = 193,934.27

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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.