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Finding the Fourth Proportional to 148,121.20, 222,181.80 and 37,313.20

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Solution

The fourth proportional to 148,121.20, 222,181.80 and 37,313.20 is: 55,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,121.20 : 222,181.80 = 37,313.20 : x
  2. Step 2: Convert to fraction form
    148,121.20/222,181.80 = 37,313.20/x
  3. Step 3: Cross multiply
    148,121.20x = 222,181.80 × 37,313.20
  4. Step 4: Simplify right side
    148,121.20x = 8,290,313,939.76
  5. Step 5: Solve for x
    x = 8,290,313,939.76/148,121.20
  6. Step 6: Final answer
    x = 55,969.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.