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Finding the Fourth Proportional to 127,912.72, 191,909.04 and 43,674.88

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Solution

The fourth proportional to 127,912.72, 191,909.04 and 43,674.88 is: 65,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,912.72 : 191,909.04 = 43,674.88 : x
  2. Step 2: Convert to fraction form
    127,912.72/191,909.04 = 43,674.88/x
  3. Step 3: Cross multiply
    127,912.72x = 191,909.04 × 43,674.88
  4. Step 4: Simplify right side
    127,912.72x = 8,381,604,292.92
  5. Step 5: Solve for x
    x = 8,381,604,292.92/127,912.72
  6. Step 6: Final answer
    x = 65,525.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.