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Finding the Fourth Proportional to 108,512.68, 163,019.14 and 104,028.72

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Solution

The fourth proportional to 108,512.68, 163,019.14 and 104,028.72 is: 156,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.68 : 163,019.14 = 104,028.72 : x
  2. Step 2: Convert to fraction form
    108,512.68/163,019.14 = 104,028.72/x
  3. Step 3: Cross multiply
    108,512.68x = 163,019.14 × 104,028.72
  4. Step 4: Simplify right side
    108,512.68x = 16,958,672,469.70
  5. Step 5: Solve for x
    x = 16,958,672,469.70/108,512.68
  6. Step 6: Final answer
    x = 156,282.86

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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.