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Finding the Fourth Proportional to 128,337.81, 192,505.49 and 34,843.56

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Solution

The fourth proportional to 128,337.81, 192,505.49 and 34,843.56 is: 52,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,337.81 : 192,505.49 = 34,843.56 : x
  2. Step 2: Convert to fraction form
    128,337.81/192,505.49 = 34,843.56/x
  3. Step 3: Cross multiply
    128,337.81x = 192,505.49 × 34,843.56
  4. Step 4: Simplify right side
    128,337.81x = 6,707,576,591.14
  5. Step 5: Solve for x
    x = 6,707,576,591.14/128,337.81
  6. Step 6: Final answer
    x = 52,265.01

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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.