Home / 161,137.42-222,369.91-89,517.49

Finding the Fourth Proportional to 161,137.42, 222,369.91 and 89,517.49

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Solution

The fourth proportional to 161,137.42, 222,369.91 and 89,517.49 is: 123,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,137.42 : 222,369.91 = 89,517.49 : x
  2. Step 2: Convert to fraction form
    161,137.42/222,369.91 = 89,517.49/x
  3. Step 3: Cross multiply
    161,137.42x = 222,369.91 × 89,517.49
  4. Step 4: Simplify right side
    161,137.42x = 19,905,995,415.01
  5. Step 5: Solve for x
    x = 19,905,995,415.01/161,137.42
  6. Step 6: Final answer
    x = 123,534.28

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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.