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Finding the Fourth Proportional to 168,108.40, 252,162.60 and 156,298.60

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Solution

The fourth proportional to 168,108.40, 252,162.60 and 156,298.60 is: 234,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,108.40 : 252,162.60 = 156,298.60 : x
  2. Step 2: Convert to fraction form
    168,108.40/252,162.60 = 156,298.60/x
  3. Step 3: Cross multiply
    168,108.40x = 252,162.60 × 156,298.60
  4. Step 4: Simplify right side
    168,108.40x = 39,412,661,352.36
  5. Step 5: Solve for x
    x = 39,412,661,352.36/168,108.40
  6. Step 6: Final answer
    x = 234,447.90

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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.