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Finding the Fourth Proportional to 136,383.57, 188,205.50 and 75,954.20

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Solution

The fourth proportional to 136,383.57, 188,205.50 and 75,954.20 is: 104,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,383.57 : 188,205.50 = 75,954.20 : x
  2. Step 2: Convert to fraction form
    136,383.57/188,205.50 = 75,954.20/x
  3. Step 3: Cross multiply
    136,383.57x = 188,205.50 × 75,954.20
  4. Step 4: Simplify right side
    136,383.57x = 14,294,996,867.30
  5. Step 5: Solve for x
    x = 14,294,996,867.30/136,383.57
  6. Step 6: Final answer
    x = 104,814.66

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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.