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Finding the Fourth Proportional to 68,138.76, 102,208.58 and 23,765.34

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Solution

The fourth proportional to 68,138.76, 102,208.58 and 23,765.34 is: 35,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,138.76 : 102,208.58 = 23,765.34 : x
  2. Step 2: Convert to fraction form
    68,138.76/102,208.58 = 23,765.34/x
  3. Step 3: Cross multiply
    68,138.76x = 102,208.58 × 23,765.34
  4. Step 4: Simplify right side
    68,138.76x = 2,429,021,654.62
  5. Step 5: Solve for x
    x = 2,429,021,654.62/68,138.76
  6. Step 6: Final answer
    x = 35,648.16

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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.