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Finding the Fourth Proportional to 168,102.60, 251,862.30 and 108,907.80

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Solution

The fourth proportional to 168,102.60, 251,862.30 and 108,907.80 is: 163,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,102.60 : 251,862.30 = 108,907.80 : x
  2. Step 2: Convert to fraction form
    168,102.60/251,862.30 = 108,907.80/x
  3. Step 3: Cross multiply
    168,102.60x = 251,862.30 × 108,907.80
  4. Step 4: Simplify right side
    168,102.60x = 27,429,768,995.94
  5. Step 5: Solve for x
    x = 27,429,768,995.94/168,102.60
  6. Step 6: Final answer
    x = 163,172.78

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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.