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Finding the Fourth Proportional to 108,865, 163,297.62 and 43,201

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Solution

The fourth proportional to 108,865, 163,297.62 and 43,201 is: 64,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,865 : 163,297.62 = 43,201 : x
  2. Step 2: Convert to fraction form
    108,865/163,297.62 = 43,201/x
  3. Step 3: Cross multiply
    108,865x = 163,297.62 × 43,201
  4. Step 4: Simplify right side
    108,865x = 7,054,620,481.62
  5. Step 5: Solve for x
    x = 7,054,620,481.62/108,865
  6. Step 6: Final answer
    x = 64,801.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.