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Finding the Fourth Proportional to 143,393.88, 214,794.90 and 84,049.32

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Solution

The fourth proportional to 143,393.88, 214,794.90 and 84,049.32 is: 125,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,393.88 : 214,794.90 = 84,049.32 : x
  2. Step 2: Convert to fraction form
    143,393.88/214,794.90 = 84,049.32/x
  3. Step 3: Cross multiply
    143,393.88x = 214,794.90 × 84,049.32
  4. Step 4: Simplify right side
    143,393.88x = 18,053,365,284.47
  5. Step 5: Solve for x
    x = 18,053,365,284.47/143,393.88
  6. Step 6: Final answer
    x = 125,900.53

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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.