Home / 117,251.50-161,745.86-71,939.59

Finding the Fourth Proportional to 117,251.50, 161,745.86 and 71,939.59

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Solution

The fourth proportional to 117,251.50, 161,745.86 and 71,939.59 is: 99,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,251.50 : 161,745.86 = 71,939.59 : x
  2. Step 2: Convert to fraction form
    117,251.50/161,745.86 = 71,939.59/x
  3. Step 3: Cross multiply
    117,251.50x = 161,745.86 × 71,939.59
  4. Step 4: Simplify right side
    117,251.50x = 11,635,931,537.90
  5. Step 5: Solve for x
    x = 11,635,931,537.90/117,251.50
  6. Step 6: Final answer
    x = 99,239.09

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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.