Home / 122,637.85-169,232.49-68,922.09

Finding the Fourth Proportional to 122,637.85, 169,232.49 and 68,922.09

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Solution

The fourth proportional to 122,637.85, 169,232.49 and 68,922.09 is: 95,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,637.85 : 169,232.49 = 68,922.09 : x
  2. Step 2: Convert to fraction form
    122,637.85/169,232.49 = 68,922.09/x
  3. Step 3: Cross multiply
    122,637.85x = 169,232.49 × 68,922.09
  4. Step 4: Simplify right side
    122,637.85x = 11,663,856,906.70
  5. Step 5: Solve for x
    x = 11,663,856,906.70/122,637.85
  6. Step 6: Final answer
    x = 95,108.13

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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.