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Finding the Fourth Proportional to 133,060.32, 199,614.78 and 80,407.08

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Solution

The fourth proportional to 133,060.32, 199,614.78 and 80,407.08 is: 120,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,060.32 : 199,614.78 = 80,407.08 : x
  2. Step 2: Convert to fraction form
    133,060.32/199,614.78 = 80,407.08/x
  3. Step 3: Cross multiply
    133,060.32x = 199,614.78 × 80,407.08
  4. Step 4: Simplify right side
    133,060.32x = 16,050,441,584.64
  5. Step 5: Solve for x
    x = 16,050,441,584.64/133,060.32
  6. Step 6: Final answer
    x = 120,625.30

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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.