Finding the Fourth Proportional to 188,050.80, 259,458.36 and 121,021.68
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Solution
The fourth proportional to 188,050.80, 259,458.36 and 121,021.68 is: 166,976.62
Step by Step Solution
- Step 1: Write the proportion equation
188,050.80 : 259,458.36 = 121,021.68 : x - Step 2: Convert to fraction form
188,050.80/259,458.36 = 121,021.68/x - Step 3: Cross multiply
188,050.80x = 259,458.36 × 121,021.68 - Step 4: Simplify right side
188,050.80x = 31,400,086,617.24 - Step 5: Solve for x
x = 31,400,086,617.24/188,050.80 - Step 6: Final answer
x = 166,976.62
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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.