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Finding the Fourth Proportional to 68,765.86, 103,150.23 and 22,018.60

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Solution

The fourth proportional to 68,765.86, 103,150.23 and 22,018.60 is: 33,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,765.86 : 103,150.23 = 22,018.60 : x
  2. Step 2: Convert to fraction form
    68,765.86/103,150.23 = 22,018.60/x
  3. Step 3: Cross multiply
    68,765.86x = 103,150.23 × 22,018.60
  4. Step 4: Simplify right side
    68,765.86x = 2,271,223,654.28
  5. Step 5: Solve for x
    x = 2,271,223,654.28/68,765.86
  6. Step 6: Final answer
    x = 33,028.36

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1.5x scale

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.