Home / 103,183.45-154,775.18-68,114.90

Finding the Fourth Proportional to 103,183.45, 154,775.18 and 68,114.90

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Solution

The fourth proportional to 103,183.45, 154,775.18 and 68,114.90 is: 102,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,183.45 : 154,775.18 = 68,114.90 : x
  2. Step 2: Convert to fraction form
    103,183.45/154,775.18 = 68,114.90/x
  3. Step 3: Cross multiply
    103,183.45x = 154,775.18 × 68,114.90
  4. Step 4: Simplify right side
    103,183.45x = 10,542,496,465.41
  5. Step 5: Solve for x
    x = 10,542,496,465.41/103,183.45
  6. Step 6: Final answer
    x = 102,172.36

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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.