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Finding the Fourth Proportional to 67,108.76, 100,662.84 and 17,188.76

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Solution

The fourth proportional to 67,108.76, 100,662.84 and 17,188.76 is: 25,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,108.76 : 100,662.84 = 17,188.76 : x
  2. Step 2: Convert to fraction form
    67,108.76/100,662.84 = 17,188.76/x
  3. Step 3: Cross multiply
    67,108.76x = 100,662.84 × 17,188.76
  4. Step 4: Simplify right side
    67,108.76x = 1,730,269,397.68
  5. Step 5: Solve for x
    x = 1,730,269,397.68/67,108.76
  6. Step 6: Final answer
    x = 25,783.06

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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.