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Finding the Fourth Proportional to 169,487.12, 254,174.88 and 57,137

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Solution

The fourth proportional to 169,487.12, 254,174.88 and 57,137 is: 85,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,487.12 : 254,174.88 = 57,137 : x
  2. Step 2: Convert to fraction form
    169,487.12/254,174.88 = 57,137/x
  3. Step 3: Cross multiply
    169,487.12x = 254,174.88 × 57,137
  4. Step 4: Simplify right side
    169,487.12x = 14,522,790,118.56
  5. Step 5: Solve for x
    x = 14,522,790,118.56/169,487.12
  6. Step 6: Final answer
    x = 85,686.69

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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.