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Finding the Fourth Proportional to 168,735.60, 253,141.80 and 98,578.80

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Solution

The fourth proportional to 168,735.60, 253,141.80 and 98,578.80 is: 147,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.60 : 253,141.80 = 98,578.80 : x
  2. Step 2: Convert to fraction form
    168,735.60/253,141.80 = 98,578.80/x
  3. Step 3: Cross multiply
    168,735.60x = 253,141.80 × 98,578.80
  4. Step 4: Simplify right side
    168,735.60x = 24,954,414,873.84
  5. Step 5: Solve for x
    x = 24,954,414,873.84/168,735.60
  6. Step 6: Final answer
    x = 147,890.63

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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.