Home / 149,783.54-206,702.69-85,249.61

Finding the Fourth Proportional to 149,783.54, 206,702.69 and 85,249.61

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Solution

The fourth proportional to 149,783.54, 206,702.69 and 85,249.61 is: 117,645.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,783.54 : 206,702.69 = 85,249.61 : x
  2. Step 2: Convert to fraction form
    149,783.54/206,702.69 = 85,249.61/x
  3. Step 3: Cross multiply
    149,783.54x = 206,702.69 × 85,249.61
  4. Step 4: Simplify right side
    149,783.54x = 17,621,324,438.33
  5. Step 5: Solve for x
    x = 17,621,324,438.33/149,783.54
  6. Step 6: Final answer
    x = 117,645.26

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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.