Home / 149,985.49-206,979.51-82,002.37

Finding the Fourth Proportional to 149,985.49, 206,979.51 and 82,002.37

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Solution

The fourth proportional to 149,985.49, 206,979.51 and 82,002.37 is: 113,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,985.49 : 206,979.51 = 82,002.37 : x
  2. Step 2: Convert to fraction form
    149,985.49/206,979.51 = 82,002.37/x
  3. Step 3: Cross multiply
    149,985.49x = 206,979.51 × 82,002.37
  4. Step 4: Simplify right side
    149,985.49x = 16,972,810,361.44
  5. Step 5: Solve for x
    x = 16,972,810,361.44/149,985.49
  6. Step 6: Final answer
    x = 113,163.02

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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.