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Finding the Fourth Proportional to 123,104.58, 169,881.95 and 69,388.56

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Solution

The fourth proportional to 123,104.58, 169,881.95 and 69,388.56 is: 95,754.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,104.58 : 169,881.95 = 69,388.56 : x
  2. Step 2: Convert to fraction form
    123,104.58/169,881.95 = 69,388.56/x
  3. Step 3: Cross multiply
    123,104.58x = 169,881.95 × 69,388.56
  4. Step 4: Simplify right side
    123,104.58x = 11,787,863,533.55
  5. Step 5: Solve for x
    x = 11,787,863,533.55/123,104.58
  6. Step 6: Final answer
    x = 95,754.87

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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.