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Finding the Fourth Proportional to 135,252.32, 186,653.70 and 74,821.93

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Solution

The fourth proportional to 135,252.32, 186,653.70 and 74,821.93 is: 103,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,252.32 : 186,653.70 = 74,821.93 : x
  2. Step 2: Convert to fraction form
    135,252.32/186,653.70 = 74,821.93/x
  3. Step 3: Cross multiply
    135,252.32x = 186,653.70 × 74,821.93
  4. Step 4: Simplify right side
    135,252.32x = 13,965,789,142.37
  5. Step 5: Solve for x
    x = 13,965,789,142.37/135,252.32
  6. Step 6: Final answer
    x = 103,257.30

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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.