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Finding the Fourth Proportional to 108,956.31, 150,299.04 and 101,250

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Solution

The fourth proportional to 108,956.31, 150,299.04 and 101,250 is: 139,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,956.31 : 150,299.04 = 101,250 : x
  2. Step 2: Convert to fraction form
    108,956.31/150,299.04 = 101,250/x
  3. Step 3: Cross multiply
    108,956.31x = 150,299.04 × 101,250
  4. Step 4: Simplify right side
    108,956.31x = 15,217,777,800
  5. Step 5: Solve for x
    x = 15,217,777,800/108,956.31
  6. Step 6: Final answer
    x = 139,668.62

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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.