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Finding the Fourth Proportional to 133,627.30, 200,052.15 and 81,009.70

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Solution

The fourth proportional to 133,627.30, 200,052.15 and 81,009.70 is: 121,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,627.30 : 200,052.15 = 81,009.70 : x
  2. Step 2: Convert to fraction form
    133,627.30/200,052.15 = 81,009.70/x
  3. Step 3: Cross multiply
    133,627.30x = 200,052.15 × 81,009.70
  4. Step 4: Simplify right side
    133,627.30x = 16,206,164,655.86
  5. Step 5: Solve for x
    x = 16,206,164,655.86/133,627.30
  6. Step 6: Final answer
    x = 121,278.85

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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.