Home / 148,621.43-222,636.87-81,896.06

Finding the Fourth Proportional to 148,621.43, 222,636.87 and 81,896.06

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Solution

The fourth proportional to 148,621.43, 222,636.87 and 81,896.06 is: 122,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,621.43 : 222,636.87 = 81,896.06 : x
  2. Step 2: Convert to fraction form
    148,621.43/222,636.87 = 81,896.06/x
  3. Step 3: Cross multiply
    148,621.43x = 222,636.87 × 81,896.06
  4. Step 4: Simplify right side
    148,621.43x = 18,233,082,463.73
  5. Step 5: Solve for x
    x = 18,233,082,463.73/148,621.43
  6. Step 6: Final answer
    x = 122,681.38

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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.