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Finding the Fourth Proportional to 134,289.30, 201,105.90 and 100,828.20

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Solution

The fourth proportional to 134,289.30, 201,105.90 and 100,828.20 is: 150,995.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,289.30 : 201,105.90 = 100,828.20 : x
  2. Step 2: Convert to fraction form
    134,289.30/201,105.90 = 100,828.20/x
  3. Step 3: Cross multiply
    134,289.30x = 201,105.90 × 100,828.20
  4. Step 4: Simplify right side
    134,289.30x = 20,277,145,906.38
  5. Step 5: Solve for x
    x = 20,277,145,906.38/134,289.30
  6. Step 6: Final answer
    x = 150,995.99

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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.