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Finding the Fourth Proportional to 108,592.56, 149,777.64 and 68,274

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Solution

The fourth proportional to 108,592.56, 149,777.64 and 68,274 is: 94,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,592.56 : 149,777.64 = 68,274 : x
  2. Step 2: Convert to fraction form
    108,592.56/149,777.64 = 68,274/x
  3. Step 3: Cross multiply
    108,592.56x = 149,777.64 × 68,274
  4. Step 4: Simplify right side
    108,592.56x = 10,225,918,593.36
  5. Step 5: Solve for x
    x = 10,225,918,593.36/108,592.56
  6. Step 6: Final answer
    x = 94,167.76

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Why These Related Problems?

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