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Finding the Fourth Proportional to 133,405.11, 200,013.30 and 66,797.46

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Solution

The fourth proportional to 133,405.11, 200,013.30 and 66,797.46 is: 100,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,405.11 : 200,013.30 = 66,797.46 : x
  2. Step 2: Convert to fraction form
    133,405.11/200,013.30 = 66,797.46/x
  3. Step 3: Cross multiply
    133,405.11x = 200,013.30 × 66,797.46
  4. Step 4: Simplify right side
    133,405.11x = 13,360,380,406.22
  5. Step 5: Solve for x
    x = 13,360,380,406.22/133,405.11
  6. Step 6: Final answer
    x = 100,148.94

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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.