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Finding the Fourth Proportional to 134,713.44, 185,905.83 and 74,286.21

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Solution

The fourth proportional to 134,713.44, 185,905.83 and 74,286.21 is: 102,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,713.44 : 185,905.83 = 74,286.21 : x
  2. Step 2: Convert to fraction form
    134,713.44/185,905.83 = 74,286.21/x
  3. Step 3: Cross multiply
    134,713.44x = 185,905.83 × 74,286.21
  4. Step 4: Simplify right side
    134,713.44x = 13,810,239,527.60
  5. Step 5: Solve for x
    x = 13,810,239,527.60/134,713.44
  6. Step 6: Final answer
    x = 102,515.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.