Home / 188,399.12-259,771.05-140,569.43

Finding the Fourth Proportional to 188,399.12, 259,771.05 and 140,569.43

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Solution

The fourth proportional to 188,399.12, 259,771.05 and 140,569.43 is: 193,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,399.12 : 259,771.05 = 140,569.43 : x
  2. Step 2: Convert to fraction form
    188,399.12/259,771.05 = 140,569.43/x
  3. Step 3: Cross multiply
    188,399.12x = 259,771.05 × 140,569.43
  4. Step 4: Simplify right side
    188,399.12x = 36,515,867,130.15
  5. Step 5: Solve for x
    x = 36,515,867,130.15/188,399.12
  6. Step 6: Final answer
    x = 193,821.86

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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.