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Finding the Fourth Proportional to 135,260.80, 202,502.40 and 82,772.80

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Solution

The fourth proportional to 135,260.80, 202,502.40 and 82,772.80 is: 123,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,260.80 : 202,502.40 = 82,772.80 : x
  2. Step 2: Convert to fraction form
    135,260.80/202,502.40 = 82,772.80/x
  3. Step 3: Cross multiply
    135,260.80x = 202,502.40 × 82,772.80
  4. Step 4: Simplify right side
    135,260.80x = 16,761,690,654.72
  5. Step 5: Solve for x
    x = 16,761,690,654.72/135,260.80
  6. Step 6: Final answer
    x = 123,921.27

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1.5x scale

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.