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Finding the Fourth Proportional to 132,954, 183,372.75 and 85,211.88

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Solution

The fourth proportional to 132,954, 183,372.75 and 85,211.88 is: 117,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,954 : 183,372.75 = 85,211.88 : x
  2. Step 2: Convert to fraction form
    132,954/183,372.75 = 85,211.88/x
  3. Step 3: Cross multiply
    132,954x = 183,372.75 × 85,211.88
  4. Step 4: Simplify right side
    132,954x = 15,625,536,768.27
  5. Step 5: Solve for x
    x = 15,625,536,768.27/132,954
  6. Step 6: Final answer
    x = 117,525.89

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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.