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Finding the Fourth Proportional to 108,168.00, 162,252.12 and 28,205.90

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Solution

The fourth proportional to 108,168.00, 162,252.12 and 28,205.90 is: 42,308.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,168.00 : 162,252.12 = 28,205.90 : x
  2. Step 2: Convert to fraction form
    108,168.00/162,252.12 = 28,205.90/x
  3. Step 3: Cross multiply
    108,168.00x = 162,252.12 × 28,205.90
  4. Step 4: Simplify right side
    108,168.00x = 4,576,466,119.22
  5. Step 5: Solve for x
    x = 4,576,466,119.22/108,168.00
  6. Step 6: Final answer
    x = 42,308.87

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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.