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Finding the Fourth Proportional to 188,179.26, 259,686.72 and 102,138.23

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Solution

The fourth proportional to 188,179.26, 259,686.72 and 102,138.23 is: 140,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,179.26 : 259,686.72 = 102,138.23 : x
  2. Step 2: Convert to fraction form
    188,179.26/259,686.72 = 102,138.23/x
  3. Step 3: Cross multiply
    188,179.26x = 259,686.72 × 102,138.23
  4. Step 4: Simplify right side
    188,179.26x = 26,523,942,584.52
  5. Step 5: Solve for x
    x = 26,523,942,584.52/188,179.26
  6. Step 6: Final answer
    x = 140,950.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.