Home / 136,850.36-188,787.97-85,837.55

Finding the Fourth Proportional to 136,850.36, 188,787.97 and 85,837.55

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Solution

The fourth proportional to 136,850.36, 188,787.97 and 85,837.55 is: 118,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,850.36 : 188,787.97 = 85,837.55 : x
  2. Step 2: Convert to fraction form
    136,850.36/188,787.97 = 85,837.55/x
  3. Step 3: Cross multiply
    136,850.36x = 188,787.97 × 85,837.55
  4. Step 4: Simplify right side
    136,850.36x = 16,205,096,025.76
  5. Step 5: Solve for x
    x = 16,205,096,025.76/136,850.36
  6. Step 6: Final answer
    x = 118,414.71

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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.