Home / 102,968.20-154,538.70-50,422.60

Finding the Fourth Proportional to 102,968.20, 154,538.70 and 50,422.60

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Solution

The fourth proportional to 102,968.20, 154,538.70 and 50,422.60 is: 75,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,968.20 : 154,538.70 = 50,422.60 : x
  2. Step 2: Convert to fraction form
    102,968.20/154,538.70 = 50,422.60/x
  3. Step 3: Cross multiply
    102,968.20x = 154,538.70 × 50,422.60
  4. Step 4: Simplify right side
    102,968.20x = 7,792,243,054.62
  5. Step 5: Solve for x
    x = 7,792,243,054.62/102,968.20
  6. Step 6: Final answer
    x = 75,676.21

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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.