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Finding the Fourth Proportional to 101,929.20, 152,893.80 and 92,743.80

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Solution

The fourth proportional to 101,929.20, 152,893.80 and 92,743.80 is: 139,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,929.20 : 152,893.80 = 92,743.80 : x
  2. Step 2: Convert to fraction form
    101,929.20/152,893.80 = 92,743.80/x
  3. Step 3: Cross multiply
    101,929.20x = 152,893.80 × 92,743.80
  4. Step 4: Simplify right side
    101,929.20x = 14,179,952,008.44
  5. Step 5: Solve for x
    x = 14,179,952,008.44/101,929.20
  6. Step 6: Final answer
    x = 139,115.70

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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.