Home / 172,052.20-258,078.30-109,066.60

Finding the Fourth Proportional to 172,052.20, 258,078.30 and 109,066.60

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Solution

The fourth proportional to 172,052.20, 258,078.30 and 109,066.60 is: 163,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,052.20 : 258,078.30 = 109,066.60 : x
  2. Step 2: Convert to fraction form
    172,052.20/258,078.30 = 109,066.60/x
  3. Step 3: Cross multiply
    172,052.20x = 258,078.30 × 109,066.60
  4. Step 4: Simplify right side
    172,052.20x = 28,147,722,714.78
  5. Step 5: Solve for x
    x = 28,147,722,714.78/172,052.20
  6. Step 6: Final answer
    x = 163,599.90

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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.