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Finding the Fourth Proportional to 131,797.80, 197,712.90 and 43,027.20

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Solution

The fourth proportional to 131,797.80, 197,712.90 and 43,027.20 is: 64,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,797.80 : 197,712.90 = 43,027.20 : x
  2. Step 2: Convert to fraction form
    131,797.80/197,712.90 = 43,027.20/x
  3. Step 3: Cross multiply
    131,797.80x = 197,712.90 × 43,027.20
  4. Step 4: Simplify right side
    131,797.80x = 8,507,032,490.88
  5. Step 5: Solve for x
    x = 8,507,032,490.88/131,797.80
  6. Step 6: Final answer
    x = 64,546.09

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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.