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Finding the Fourth Proportional to 163,205.80, 244,614.30 and 68,435.80

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Solution

The fourth proportional to 163,205.80, 244,614.30 and 68,435.80 is: 102,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,205.80 : 244,614.30 = 68,435.80 : x
  2. Step 2: Convert to fraction form
    163,205.80/244,614.30 = 68,435.80/x
  3. Step 3: Cross multiply
    163,205.80x = 244,614.30 × 68,435.80
  4. Step 4: Simplify right side
    163,205.80x = 16,740,375,311.94
  5. Step 5: Solve for x
    x = 16,740,375,311.94/163,205.80
  6. Step 6: Final answer
    x = 102,572.18

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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.