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Finding the Fourth Proportional to 132,950.20, 199,425.30 and 121,286.20

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Solution

The fourth proportional to 132,950.20, 199,425.30 and 121,286.20 is: 181,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,950.20 : 199,425.30 = 121,286.20 : x
  2. Step 2: Convert to fraction form
    132,950.20/199,425.30 = 121,286.20/x
  3. Step 3: Cross multiply
    132,950.20x = 199,425.30 × 121,286.20
  4. Step 4: Simplify right side
    132,950.20x = 24,187,536,820.86
  5. Step 5: Solve for x
    x = 24,187,536,820.86/132,950.20
  6. Step 6: Final answer
    x = 181,929.30

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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.