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Finding the Fourth Proportional to 168,234.61, 252,133.92 and 68,340.31

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Solution

The fourth proportional to 168,234.61, 252,133.92 and 68,340.31 is: 102,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,234.61 : 252,133.92 = 68,340.31 : x
  2. Step 2: Convert to fraction form
    168,234.61/252,133.92 = 68,340.31/x
  3. Step 3: Cross multiply
    168,234.61x = 252,133.92 × 68,340.31
  4. Step 4: Simplify right side
    168,234.61x = 17,230,910,254.32
  5. Step 5: Solve for x
    x = 17,230,910,254.32/168,234.61
  6. Step 6: Final answer
    x = 102,421.91

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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.