Home / 140,067.24-210,180.86-51,309

Finding the Fourth Proportional to 140,067.24, 210,180.86 and 51,309

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Solution

The fourth proportional to 140,067.24, 210,180.86 and 51,309 is: 76,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,067.24 : 210,180.86 = 51,309 : x
  2. Step 2: Convert to fraction form
    140,067.24/210,180.86 = 51,309/x
  3. Step 3: Cross multiply
    140,067.24x = 210,180.86 × 51,309
  4. Step 4: Simplify right side
    140,067.24x = 10,784,169,745.74
  5. Step 5: Solve for x
    x = 10,784,169,745.74/140,067.24
  6. Step 6: Final answer
    x = 76,992.81

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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.