Home / 122,658.09-169,269.75-68,939.97

Finding the Fourth Proportional to 122,658.09, 169,269.75 and 68,939.97

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Solution

The fourth proportional to 122,658.09, 169,269.75 and 68,939.97 is: 95,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658.09 : 169,269.75 = 68,939.97 : x
  2. Step 2: Convert to fraction form
    122,658.09/169,269.75 = 68,939.97/x
  3. Step 3: Cross multiply
    122,658.09x = 169,269.75 × 68,939.97
  4. Step 4: Simplify right side
    122,658.09x = 11,669,451,486.91
  5. Step 5: Solve for x
    x = 11,669,451,486.91/122,658.09
  6. Step 6: Final answer
    x = 95,138.05

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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.