Home / 149,420.54-206,199.87-82,352.54

Finding the Fourth Proportional to 149,420.54, 206,199.87 and 82,352.54

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Solution

The fourth proportional to 149,420.54, 206,199.87 and 82,352.54 is: 113,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,420.54 : 206,199.87 = 82,352.54 : x
  2. Step 2: Convert to fraction form
    149,420.54/206,199.87 = 82,352.54/x
  3. Step 3: Cross multiply
    149,420.54x = 206,199.87 × 82,352.54
  4. Step 4: Simplify right side
    149,420.54x = 16,981,083,042.17
  5. Step 5: Solve for x
    x = 16,981,083,042.17/149,420.54
  6. Step 6: Final answer
    x = 113,646.24

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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.