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Finding the Fourth Proportional to 133,635.10, 200,260.80 and 80,348.84

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Solution

The fourth proportional to 133,635.10, 200,260.80 and 80,348.84 is: 120,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,635.10 : 200,260.80 = 80,348.84 : x
  2. Step 2: Convert to fraction form
    133,635.10/200,260.80 = 80,348.84/x
  3. Step 3: Cross multiply
    133,635.10x = 200,260.80 × 80,348.84
  4. Step 4: Simplify right side
    133,635.10x = 16,090,722,977.47
  5. Step 5: Solve for x
    x = 16,090,722,977.47/133,635.10
  6. Step 6: Final answer
    x = 120,407.91

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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.