Home / 122,636.89-169,252.94-68,194.49

Finding the Fourth Proportional to 122,636.89, 169,252.94 and 68,194.49

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Solution

The fourth proportional to 122,636.89, 169,252.94 and 68,194.49 is: 94,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,636.89 : 169,252.94 = 68,194.49 : x
  2. Step 2: Convert to fraction form
    122,636.89/169,252.94 = 68,194.49/x
  3. Step 3: Cross multiply
    122,636.89x = 169,252.94 × 68,194.49
  4. Step 4: Simplify right side
    122,636.89x = 11,542,118,200.57
  5. Step 5: Solve for x
    x = 11,542,118,200.57/122,636.89
  6. Step 6: Final answer
    x = 94,116.20

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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.