Home / 138,200.94-207,316.23-38,361.56

Finding the Fourth Proportional to 138,200.94, 207,316.23 and 38,361.56

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Solution

The fourth proportional to 138,200.94, 207,316.23 and 38,361.56 is: 57,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200.94 : 207,316.23 = 38,361.56 : x
  2. Step 2: Convert to fraction form
    138,200.94/207,316.23 = 38,361.56/x
  3. Step 3: Cross multiply
    138,200.94x = 207,316.23 × 38,361.56
  4. Step 4: Simplify right side
    138,200.94x = 7,952,973,996.12
  5. Step 5: Solve for x
    x = 7,952,973,996.12/138,200.94
  6. Step 6: Final answer
    x = 57,546.45

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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.