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Finding the Fourth Proportional to 122,329.77, 168,806.40 and 67,884.86

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Solution

The fourth proportional to 122,329.77, 168,806.40 and 67,884.86 is: 93,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,329.77 : 168,806.40 = 67,884.86 : x
  2. Step 2: Convert to fraction form
    122,329.77/168,806.40 = 67,884.86/x
  3. Step 3: Cross multiply
    122,329.77x = 168,806.40 × 67,884.86
  4. Step 4: Simplify right side
    122,329.77x = 11,459,399,096.56
  5. Step 5: Solve for x
    x = 11,459,399,096.56/122,329.77
  6. Step 6: Final answer
    x = 93,676.29

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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.