Finding the Fourth Proportional to 188,204.36, 259,635.38 and 120,187.26
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Solution
The fourth proportional to 188,204.36, 259,635.38 and 120,187.26 is: 165,803.09
Step by Step Solution
- Step 1: Write the proportion equation
188,204.36 : 259,635.38 = 120,187.26 : x - Step 2: Convert to fraction form
188,204.36/259,635.38 = 120,187.26/x - Step 3: Cross multiply
188,204.36x = 259,635.38 × 120,187.26 - Step 4: Simplify right side
188,204.36x = 31,204,864,921.26 - Step 5: Solve for x
x = 31,204,864,921.26/188,204.36 - Step 6: Final answer
x = 165,803.09
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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.