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Finding the Fourth Proportional to 161,361.62, 222,675.86 and 89,740.10

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Solution

The fourth proportional to 161,361.62, 222,675.86 and 89,740.10 is: 123,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,361.62 : 222,675.86 = 89,740.10 : x
  2. Step 2: Convert to fraction form
    161,361.62/222,675.86 = 89,740.10/x
  3. Step 3: Cross multiply
    161,361.62x = 222,675.86 × 89,740.10
  4. Step 4: Simplify right side
    161,361.62x = 19,982,953,943.99
  5. Step 5: Solve for x
    x = 19,982,953,943.99/161,361.62
  6. Step 6: Final answer
    x = 123,839.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.