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Finding the Fourth Proportional to 101,256.39, 151,565.88 and 69,480.66

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Solution

The fourth proportional to 101,256.39, 151,565.88 and 69,480.66 is: 104,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,256.39 : 151,565.88 = 69,480.66 : x
  2. Step 2: Convert to fraction form
    101,256.39/151,565.88 = 69,480.66/x
  3. Step 3: Cross multiply
    101,256.39x = 151,565.88 × 69,480.66
  4. Step 4: Simplify right side
    101,256.39x = 10,530,897,375.88
  5. Step 5: Solve for x
    x = 10,530,897,375.88/101,256.39
  6. Step 6: Final answer
    x = 104,002.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.