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Finding the Fourth Proportional to 148,304.25, 204,659.87 and 84,640.68

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Solution

The fourth proportional to 148,304.25, 204,659.87 and 84,640.68 is: 116,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,304.25 : 204,659.87 = 84,640.68 : x
  2. Step 2: Convert to fraction form
    148,304.25/204,659.87 = 84,640.68/x
  3. Step 3: Cross multiply
    148,304.25x = 204,659.87 × 84,640.68
  4. Step 4: Simplify right side
    148,304.25x = 17,322,550,142.31
  5. Step 5: Solve for x
    x = 17,322,550,142.31/148,304.25
  6. Step 6: Final answer
    x = 116,804.14

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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.