Home / 136,212.26-187,974.64-74,965.50

Finding the Fourth Proportional to 136,212.26, 187,974.64 and 74,965.50

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Solution

The fourth proportional to 136,212.26, 187,974.64 and 74,965.50 is: 103,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,212.26 : 187,974.64 = 74,965.50 : x
  2. Step 2: Convert to fraction form
    136,212.26/187,974.64 = 74,965.50/x
  3. Step 3: Cross multiply
    136,212.26x = 187,974.64 × 74,965.50
  4. Step 4: Simplify right side
    136,212.26x = 14,091,612,057.60
  5. Step 5: Solve for x
    x = 14,091,612,057.60/136,212.26
  6. Step 6: Final answer
    x = 103,453.33

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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.