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Finding the Fourth Proportional to 147,797.62, 203,960.74 and 80,729.62

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Solution

The fourth proportional to 147,797.62, 203,960.74 and 80,729.62 is: 111,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,797.62 : 203,960.74 = 80,729.62 : x
  2. Step 2: Convert to fraction form
    147,797.62/203,960.74 = 80,729.62/x
  3. Step 3: Cross multiply
    147,797.62x = 203,960.74 × 80,729.62
  4. Step 4: Simplify right side
    147,797.62x = 16,465,673,035.12
  5. Step 5: Solve for x
    x = 16,465,673,035.12/147,797.62
  6. Step 6: Final answer
    x = 111,406.89

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1.5x scale

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.