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Finding the Fourth Proportional to 136,377.71, 188,201.30 and 75,959.94

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Solution

The fourth proportional to 136,377.71, 188,201.30 and 75,959.94 is: 104,824.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,377.71 : 188,201.30 = 75,959.94 : x
  2. Step 2: Convert to fraction form
    136,377.71/188,201.30 = 75,959.94/x
  3. Step 3: Cross multiply
    136,377.71x = 188,201.30 × 75,959.94
  4. Step 4: Simplify right side
    136,377.71x = 14,295,759,076.12
  5. Step 5: Solve for x
    x = 14,295,759,076.12/136,377.71
  6. Step 6: Final answer
    x = 104,824.75

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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.