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Finding the Fourth Proportional to 133,077.21, 199,473.66 and 66,385.86

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Solution

The fourth proportional to 133,077.21, 199,473.66 and 66,385.86 is: 99,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,077.21 : 199,473.66 = 66,385.86 : x
  2. Step 2: Convert to fraction form
    133,077.21/199,473.66 = 66,385.86/x
  3. Step 3: Cross multiply
    133,077.21x = 199,473.66 × 66,385.86
  4. Step 4: Simplify right side
    133,077.21x = 13,242,230,466.45
  5. Step 5: Solve for x
    x = 13,242,230,466.45/133,077.21
  6. Step 6: Final answer
    x = 99,507.88

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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.