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Finding the Fourth Proportional to 123,104, 169,883.52 and 70,112

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Solution

The fourth proportional to 123,104, 169,883.52 and 70,112 is: 96,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,104 : 169,883.52 = 70,112 : x
  2. Step 2: Convert to fraction form
    123,104/169,883.52 = 70,112/x
  3. Step 3: Cross multiply
    123,104x = 169,883.52 × 70,112
  4. Step 4: Simplify right side
    123,104x = 11,910,873,354.24
  5. Step 5: Solve for x
    x = 11,910,873,354.24/123,104
  6. Step 6: Final answer
    x = 96,754.56

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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.