Home / 68,154.87-102,231.36-17,553.60

Finding the Fourth Proportional to 68,154.87, 102,231.36 and 17,553.60

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Solution

The fourth proportional to 68,154.87, 102,231.36 and 17,553.60 is: 26,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,154.87 : 102,231.36 = 17,553.60 : x
  2. Step 2: Convert to fraction form
    68,154.87/102,231.36 = 17,553.60/x
  3. Step 3: Cross multiply
    68,154.87x = 102,231.36 × 17,553.60
  4. Step 4: Simplify right side
    68,154.87x = 1,794,528,400.90
  5. Step 5: Solve for x
    x = 1,794,528,400.90/68,154.87
  6. Step 6: Final answer
    x = 26,330.16

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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.