Home / 128,950.20-193,495.91-50,067.54

Finding the Fourth Proportional to 128,950.20, 193,495.91 and 50,067.54

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Solution

The fourth proportional to 128,950.20, 193,495.91 and 50,067.54 is: 75,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,950.20 : 193,495.91 = 50,067.54 : x
  2. Step 2: Convert to fraction form
    128,950.20/193,495.91 = 50,067.54/x
  3. Step 3: Cross multiply
    128,950.20x = 193,495.91 × 50,067.54
  4. Step 4: Simplify right side
    128,950.20x = 9,687,863,963.42
  5. Step 5: Solve for x
    x = 9,687,863,963.42/128,950.20
  6. Step 6: Final answer
    x = 75,128.72

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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.