Home / 102,801.20-154,086.60-43,626.80

Finding the Fourth Proportional to 102,801.20, 154,086.60 and 43,626.80

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Solution

The fourth proportional to 102,801.20, 154,086.60 and 43,626.80 is: 65,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,801.20 : 154,086.60 = 43,626.80 : x
  2. Step 2: Convert to fraction form
    102,801.20/154,086.60 = 43,626.80/x
  3. Step 3: Cross multiply
    102,801.20x = 154,086.60 × 43,626.80
  4. Step 4: Simplify right side
    102,801.20x = 6,722,305,280.88
  5. Step 5: Solve for x
    x = 6,722,305,280.88/102,801.20
  6. Step 6: Final answer
    x = 65,391.31

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1.5x scale

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.