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Finding the Fourth Proportional to 133,351.70, 200,157.15 and 80,863.70

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Solution

The fourth proportional to 133,351.70, 200,157.15 and 80,863.70 is: 121,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,351.70 : 200,157.15 = 80,863.70 : x
  2. Step 2: Convert to fraction form
    133,351.70/200,157.15 = 80,863.70/x
  3. Step 3: Cross multiply
    133,351.70x = 200,157.15 × 80,863.70
  4. Step 4: Simplify right side
    133,351.70x = 16,185,447,730.46
  5. Step 5: Solve for x
    x = 16,185,447,730.46/133,351.70
  6. Step 6: Final answer
    x = 121,374.14

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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.