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Finding the Fourth Proportional to 172,185.68, 237,644.44 and 143,459.78

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Solution

The fourth proportional to 172,185.68, 237,644.44 and 143,459.78 is: 197,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,185.68 : 237,644.44 = 143,459.78 : x
  2. Step 2: Convert to fraction form
    172,185.68/237,644.44 = 143,459.78/x
  3. Step 3: Cross multiply
    172,185.68x = 237,644.44 × 143,459.78
  4. Step 4: Simplify right side
    172,185.68x = 34,092,419,080.62
  5. Step 5: Solve for x
    x = 34,092,419,080.62/172,185.68
  6. Step 6: Final answer
    x = 197,997.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.