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Finding the Fourth Proportional to 108,291.50, 162,120.50 and 63,174.90

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Solution

The fourth proportional to 108,291.50, 162,120.50 and 63,174.90 is: 94,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,291.50 : 162,120.50 = 63,174.90 : x
  2. Step 2: Convert to fraction form
    108,291.50/162,120.50 = 63,174.90/x
  3. Step 3: Cross multiply
    108,291.50x = 162,120.50 × 63,174.90
  4. Step 4: Simplify right side
    108,291.50x = 10,241,946,375.45
  5. Step 5: Solve for x
    x = 10,241,946,375.45/108,291.50
  6. Step 6: Final answer
    x = 94,577.56

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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.