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Finding the Fourth Proportional to 133,440.76, 200,059.38 and 80,836.28

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Solution

The fourth proportional to 133,440.76, 200,059.38 and 80,836.28 is: 121,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,440.76 : 200,059.38 = 80,836.28 : x
  2. Step 2: Convert to fraction form
    133,440.76/200,059.38 = 80,836.28/x
  3. Step 3: Cross multiply
    133,440.76x = 200,059.38 × 80,836.28
  4. Step 4: Simplify right side
    133,440.76x = 16,172,056,058.31
  5. Step 5: Solve for x
    x = 16,172,056,058.31/133,440.76
  6. Step 6: Final answer
    x = 121,192.78

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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.