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Finding the Fourth Proportional to 132,905.56, 199,324.38 and 39,389.48

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Solution

The fourth proportional to 132,905.56, 199,324.38 and 39,389.48 is: 59,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,905.56 : 199,324.38 = 39,389.48 : x
  2. Step 2: Convert to fraction form
    132,905.56/199,324.38 = 39,389.48/x
  3. Step 3: Cross multiply
    132,905.56x = 199,324.38 × 39,389.48
  4. Step 4: Simplify right side
    132,905.56x = 7,851,283,679.52
  5. Step 5: Solve for x
    x = 7,851,283,679.52/132,905.56
  6. Step 6: Final answer
    x = 59,074.16

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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.