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Finding the Fourth Proportional to 123,560.67, 170,511.88 and 69,843.81

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Solution

The fourth proportional to 123,560.67, 170,511.88 and 69,843.81 is: 96,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,560.67 : 170,511.88 = 69,843.81 : x
  2. Step 2: Convert to fraction form
    123,560.67/170,511.88 = 69,843.81/x
  3. Step 3: Cross multiply
    123,560.67x = 170,511.88 × 69,843.81
  4. Step 4: Simplify right side
    123,560.67x = 11,909,199,349.46
  5. Step 5: Solve for x
    x = 11,909,199,349.46/123,560.67
  6. Step 6: Final answer
    x = 96,383.42

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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.