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Finding the Fourth Proportional to 168,228.88, 252,518.28 and 123,905.68

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Solution

The fourth proportional to 168,228.88, 252,518.28 and 123,905.68 is: 185,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,228.88 : 252,518.28 = 123,905.68 : x
  2. Step 2: Convert to fraction form
    168,228.88/252,518.28 = 123,905.68/x
  3. Step 3: Cross multiply
    168,228.88x = 252,518.28 × 123,905.68
  4. Step 4: Simplify right side
    168,228.88x = 31,288,449,195.83
  5. Step 5: Solve for x
    x = 31,288,449,195.83/168,228.88
  6. Step 6: Final answer
    x = 185,987.38

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1.5x scale

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.