Home / 68,087.72-102,131.60-18,168.01

Finding the Fourth Proportional to 68,087.72, 102,131.60 and 18,168.01

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Solution

The fourth proportional to 68,087.72, 102,131.60 and 18,168.01 is: 27,252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.72 : 102,131.60 = 18,168.01 : x
  2. Step 2: Convert to fraction form
    68,087.72/102,131.60 = 18,168.01/x
  3. Step 3: Cross multiply
    68,087.72x = 102,131.60 × 18,168.01
  4. Step 4: Simplify right side
    68,087.72x = 1,855,527,583.95
  5. Step 5: Solve for x
    x = 1,855,527,583.95/68,087.72
  6. Step 6: Final answer
    x = 27,252.01

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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.