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Finding the Fourth Proportional to 132,858.60, 199,287.90 and 102,791.40

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Solution

The fourth proportional to 132,858.60, 199,287.90 and 102,791.40 is: 154,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858.60 : 199,287.90 = 102,791.40 : x
  2. Step 2: Convert to fraction form
    132,858.60/199,287.90 = 102,791.40/x
  3. Step 3: Cross multiply
    132,858.60x = 199,287.90 × 102,791.40
  4. Step 4: Simplify right side
    132,858.60x = 20,485,082,244.06
  5. Step 5: Solve for x
    x = 20,485,082,244.06/132,858.60
  6. Step 6: Final answer
    x = 154,187.10

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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.