Home / 138,072.44-207,109.20-42,010.61

Finding the Fourth Proportional to 138,072.44, 207,109.20 and 42,010.61

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Solution

The fourth proportional to 138,072.44, 207,109.20 and 42,010.61 is: 63,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,072.44 : 207,109.20 = 42,010.61 : x
  2. Step 2: Convert to fraction form
    138,072.44/207,109.20 = 42,010.61/x
  3. Step 3: Cross multiply
    138,072.44x = 207,109.20 × 42,010.61
  4. Step 4: Simplify right side
    138,072.44x = 8,700,783,828.61
  5. Step 5: Solve for x
    x = 8,700,783,828.61/138,072.44
  6. Step 6: Final answer
    x = 63,016.08

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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.