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Finding the Fourth Proportional to 134,744.40, 202,116.60 and 128,183.40

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Solution

The fourth proportional to 134,744.40, 202,116.60 and 128,183.40 is: 192,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,744.40 : 202,116.60 = 128,183.40 : x
  2. Step 2: Convert to fraction form
    134,744.40/202,116.60 = 128,183.40/x
  3. Step 3: Cross multiply
    134,744.40x = 202,116.60 × 128,183.40
  4. Step 4: Simplify right side
    134,744.40x = 25,907,992,984.44
  5. Step 5: Solve for x
    x = 25,907,992,984.44/134,744.40
  6. Step 6: Final answer
    x = 192,275.10

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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.