Home / 136,942.38-188,961.66-76,505.52

Finding the Fourth Proportional to 136,942.38, 188,961.66 and 76,505.52

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Solution

The fourth proportional to 136,942.38, 188,961.66 and 76,505.52 is: 105,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,942.38 : 188,961.66 = 76,505.52 : x
  2. Step 2: Convert to fraction form
    136,942.38/188,961.66 = 76,505.52/x
  3. Step 3: Cross multiply
    136,942.38x = 188,961.66 × 76,505.52
  4. Step 4: Simplify right side
    136,942.38x = 14,456,610,058.36
  5. Step 5: Solve for x
    x = 14,456,610,058.36/136,942.38
  6. Step 6: Final answer
    x = 105,567.10

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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.