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Finding the Fourth Proportional to 123,236.97, 169,912.92 and 102,848.35

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Solution

The fourth proportional to 123,236.97, 169,912.92 and 102,848.35 is: 141,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,236.97 : 169,912.92 = 102,848.35 : x
  2. Step 2: Convert to fraction form
    123,236.97/169,912.92 = 102,848.35/x
  3. Step 3: Cross multiply
    123,236.97x = 169,912.92 × 102,848.35
  4. Step 4: Simplify right side
    123,236.97x = 17,475,263,465.68
  5. Step 5: Solve for x
    x = 17,475,263,465.68/123,236.97
  6. Step 6: Final answer
    x = 141,802.12

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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.