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Finding the Fourth Proportional to 133,385.16, 200,104.74 and 54,505.74

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Solution

The fourth proportional to 133,385.16, 200,104.74 and 54,505.74 is: 81,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,385.16 : 200,104.74 = 54,505.74 : x
  2. Step 2: Convert to fraction form
    133,385.16/200,104.74 = 54,505.74/x
  3. Step 3: Cross multiply
    133,385.16x = 200,104.74 × 54,505.74
  4. Step 4: Simplify right side
    133,385.16x = 10,906,856,931.21
  5. Step 5: Solve for x
    x = 10,906,856,931.21/133,385.16
  6. Step 6: Final answer
    x = 81,769.64

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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.