Home / 172,836.67-238,489.11-100,236.46

Finding the Fourth Proportional to 172,836.67, 238,489.11 and 100,236.46

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Solution

The fourth proportional to 172,836.67, 238,489.11 and 100,236.46 is: 138,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,836.67 : 238,489.11 = 100,236.46 : x
  2. Step 2: Convert to fraction form
    172,836.67/238,489.11 = 100,236.46/x
  3. Step 3: Cross multiply
    172,836.67x = 238,489.11 × 100,236.46
  4. Step 4: Simplify right side
    172,836.67x = 23,905,304,134.95
  5. Step 5: Solve for x
    x = 23,905,304,134.95/172,836.67
  6. Step 6: Final answer
    x = 138,311.53

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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.