Home / 172,618.34-238,179.21-109,043.30

Finding the Fourth Proportional to 172,618.34, 238,179.21 and 109,043.30

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Solution

The fourth proportional to 172,618.34, 238,179.21 and 109,043.30 is: 150,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,618.34 : 238,179.21 = 109,043.30 : x
  2. Step 2: Convert to fraction form
    172,618.34/238,179.21 = 109,043.30/x
  3. Step 3: Cross multiply
    172,618.34x = 238,179.21 × 109,043.30
  4. Step 4: Simplify right side
    172,618.34x = 25,971,847,049.79
  5. Step 5: Solve for x
    x = 25,971,847,049.79/172,618.34
  6. Step 6: Final answer
    x = 150,458.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.