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Finding the Fourth Proportional to 179,671.80, 269,702.10 and 100,939.80

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Solution

The fourth proportional to 179,671.80, 269,702.10 and 100,939.80 is: 151,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,671.80 : 269,702.10 = 100,939.80 : x
  2. Step 2: Convert to fraction form
    179,671.80/269,702.10 = 100,939.80/x
  3. Step 3: Cross multiply
    179,671.80x = 269,702.10 × 100,939.80
  4. Step 4: Simplify right side
    179,671.80x = 27,223,676,033.58
  5. Step 5: Solve for x
    x = 27,223,676,033.58/179,671.80
  6. Step 6: Final answer
    x = 151,518.91

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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.