Home / 101,326.44-139,757.97-71,118.50

Finding the Fourth Proportional to 101,326.44, 139,757.97 and 71,118.50

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Solution

The fourth proportional to 101,326.44, 139,757.97 and 71,118.50 is: 98,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,326.44 : 139,757.97 = 71,118.50 : x
  2. Step 2: Convert to fraction form
    101,326.44/139,757.97 = 71,118.50/x
  3. Step 3: Cross multiply
    101,326.44x = 139,757.97 × 71,118.50
  4. Step 4: Simplify right side
    101,326.44x = 9,939,376,833.85
  5. Step 5: Solve for x
    x = 9,939,376,833.85/101,326.44
  6. Step 6: Final answer
    x = 98,092.63

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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.