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Finding the Fourth Proportional to 108,232.80, 149,380.52 and 64,628.16

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Solution

The fourth proportional to 108,232.80, 149,380.52 and 64,628.16 is: 89,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,232.80 : 149,380.52 = 64,628.16 : x
  2. Step 2: Convert to fraction form
    108,232.80/149,380.52 = 64,628.16/x
  3. Step 3: Cross multiply
    108,232.80x = 149,380.52 × 64,628.16
  4. Step 4: Simplify right side
    108,232.80x = 9,654,188,147.44
  5. Step 5: Solve for x
    x = 9,654,188,147.44/108,232.80
  6. Step 6: Final answer
    x = 89,198.36

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1.5x scale

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.