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Finding the Fourth Proportional to 134,579.80, 201,480.90 and 82,091.80

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Solution

The fourth proportional to 134,579.80, 201,480.90 and 82,091.80 is: 122,900.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,579.80 : 201,480.90 = 82,091.80 : x
  2. Step 2: Convert to fraction form
    134,579.80/201,480.90 = 82,091.80/x
  3. Step 3: Cross multiply
    134,579.80x = 201,480.90 × 82,091.80
  4. Step 4: Simplify right side
    134,579.80x = 16,539,929,746.62
  5. Step 5: Solve for x
    x = 16,539,929,746.62/134,579.80
  6. Step 6: Final answer
    x = 122,900.54

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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.