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Finding the Fourth Proportional to 168,289.10, 252,308.10 and 101,715.20

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Solution

The fourth proportional to 168,289.10, 252,308.10 and 101,715.20 is: 152,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,289.10 : 252,308.10 = 101,715.20 : x
  2. Step 2: Convert to fraction form
    168,289.10/252,308.10 = 101,715.20/x
  3. Step 3: Cross multiply
    168,289.10x = 252,308.10 × 101,715.20
  4. Step 4: Simplify right side
    168,289.10x = 25,663,568,853.12
  5. Step 5: Solve for x
    x = 25,663,568,853.12/168,289.10
  6. Step 6: Final answer
    x = 152,496.92

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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.