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Finding the Fourth Proportional to 168,601.86, 252,652.50 and 68,639.76

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Solution

The fourth proportional to 168,601.86, 252,652.50 and 68,639.76 is: 102,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,601.86 : 252,652.50 = 68,639.76 : x
  2. Step 2: Convert to fraction form
    168,601.86/252,652.50 = 68,639.76/x
  3. Step 3: Cross multiply
    168,601.86x = 252,652.50 × 68,639.76
  4. Step 4: Simplify right side
    168,601.86x = 17,342,006,963.40
  5. Step 5: Solve for x
    x = 17,342,006,963.40/168,601.86
  6. Step 6: Final answer
    x = 102,857.74

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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.