Home / 143,634.88-214,768.32-131,086.90

Finding the Fourth Proportional to 143,634.88, 214,768.32 and 131,086.90

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Solution

The fourth proportional to 143,634.88, 214,768.32 and 131,086.90 is: 196,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,634.88 : 214,768.32 = 131,086.90 : x
  2. Step 2: Convert to fraction form
    143,634.88/214,768.32 = 131,086.90/x
  3. Step 3: Cross multiply
    143,634.88x = 214,768.32 × 131,086.90
  4. Step 4: Simplify right side
    143,634.88x = 28,153,313,287.01
  5. Step 5: Solve for x
    x = 28,153,313,287.01/143,634.88
  6. Step 6: Final answer
    x = 196,006.10

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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.