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Finding the Fourth Proportional to 123,367.58, 170,245.77 and 69,654.86

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Solution

The fourth proportional to 123,367.58, 170,245.77 and 69,654.86 is: 96,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,367.58 : 170,245.77 = 69,654.86 : x
  2. Step 2: Convert to fraction form
    123,367.58/170,245.77 = 69,654.86/x
  3. Step 3: Cross multiply
    123,367.58x = 170,245.77 × 69,654.86
  4. Step 4: Simplify right side
    123,367.58x = 11,858,444,800.93
  5. Step 5: Solve for x
    x = 11,858,444,800.93/123,367.58
  6. Step 6: Final answer
    x = 96,122.86

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1.5x scale

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.