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Finding the Fourth Proportional to 168,910.64, 252,860.84 and 102,148.72

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Solution

The fourth proportional to 168,910.64, 252,860.84 and 102,148.72 is: 152,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,910.64 : 252,860.84 = 102,148.72 : x
  2. Step 2: Convert to fraction form
    168,910.64/252,860.84 = 102,148.72/x
  3. Step 3: Cross multiply
    168,910.64x = 252,860.84 × 102,148.72
  4. Step 4: Simplify right side
    168,910.64x = 25,829,411,144.12
  5. Step 5: Solve for x
    x = 25,829,411,144.12/168,910.64
  6. Step 6: Final answer
    x = 152,917.61

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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.