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Finding the Fourth Proportional to 135,240.80, 202,472.40 and 82,752.80

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Solution

The fourth proportional to 135,240.80, 202,472.40 and 82,752.80 is: 123,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,240.80 : 202,472.40 = 82,752.80 : x
  2. Step 2: Convert to fraction form
    135,240.80/202,472.40 = 82,752.80/x
  3. Step 3: Cross multiply
    135,240.80x = 202,472.40 × 82,752.80
  4. Step 4: Simplify right side
    135,240.80x = 16,755,158,022.72
  5. Step 5: Solve for x
    x = 16,755,158,022.72/135,240.80
  6. Step 6: Final answer
    x = 123,891.30

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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.