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Finding the Fourth Proportional to 118,727, 163,843.26 and 65,735

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Solution

The fourth proportional to 118,727, 163,843.26 and 65,735 is: 90,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,727 : 163,843.26 = 65,735 : x
  2. Step 2: Convert to fraction form
    118,727/163,843.26 = 65,735/x
  3. Step 3: Cross multiply
    118,727x = 163,843.26 × 65,735
  4. Step 4: Simplify right side
    118,727x = 10,770,236,696.10
  5. Step 5: Solve for x
    x = 10,770,236,696.10/118,727
  6. Step 6: Final answer
    x = 90,714.30

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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.