Home / 138,611.34-207,942.66-43,865.37

Finding the Fourth Proportional to 138,611.34, 207,942.66 and 43,865.37

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Solution

The fourth proportional to 138,611.34, 207,942.66 and 43,865.37 is: 65,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,611.34 : 207,942.66 = 43,865.37 : x
  2. Step 2: Convert to fraction form
    138,611.34/207,942.66 = 43,865.37/x
  3. Step 3: Cross multiply
    138,611.34x = 207,942.66 × 43,865.37
  4. Step 4: Simplify right side
    138,611.34x = 9,121,481,719.68
  5. Step 5: Solve for x
    x = 9,121,481,719.68/138,611.34
  6. Step 6: Final answer
    x = 65,806.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.