Home / 103,621.26-155,431.89-68,552.73

Finding the Fourth Proportional to 103,621.26, 155,431.89 and 68,552.73

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Solution

The fourth proportional to 103,621.26, 155,431.89 and 68,552.73 is: 102,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.26 : 155,431.89 = 68,552.73 : x
  2. Step 2: Convert to fraction form
    103,621.26/155,431.89 = 68,552.73/x
  3. Step 3: Cross multiply
    103,621.26x = 155,431.89 × 68,552.73
  4. Step 4: Simplify right side
    103,621.26x = 10,655,280,388.56
  5. Step 5: Solve for x
    x = 10,655,280,388.56/103,621.26
  6. Step 6: Final answer
    x = 102,829.10

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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.