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Finding the Fourth Proportional to 134,879.70, 202,443.78 and 68,367

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Solution

The fourth proportional to 134,879.70, 202,443.78 and 68,367 is: 102,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,879.70 : 202,443.78 = 68,367 : x
  2. Step 2: Convert to fraction form
    134,879.70/202,443.78 = 68,367/x
  3. Step 3: Cross multiply
    134,879.70x = 202,443.78 × 68,367
  4. Step 4: Simplify right side
    134,879.70x = 13,840,473,907.26
  5. Step 5: Solve for x
    x = 13,840,473,907.26/134,879.70
  6. Step 6: Final answer
    x = 102,613.47

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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.