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Finding the Fourth Proportional to 68,188.68, 102,235.44 and 30,217.29

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Solution

The fourth proportional to 68,188.68, 102,235.44 and 30,217.29 is: 45,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,188.68 : 102,235.44 = 30,217.29 : x
  2. Step 2: Convert to fraction form
    68,188.68/102,235.44 = 30,217.29/x
  3. Step 3: Cross multiply
    68,188.68x = 102,235.44 × 30,217.29
  4. Step 4: Simplify right side
    68,188.68x = 3,089,277,938.76
  5. Step 5: Solve for x
    x = 3,089,277,938.76/68,188.68
  6. Step 6: Final answer
    x = 45,304.85

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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.