Finding the Fourth Proportional to 121,879.13, 182,668.97 and 68,458.82
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Solution
The fourth proportional to 121,879.13, 182,668.97 and 68,458.82 is: 102,604.12
Step by Step Solution
- Step 1: Write the proportion equation
121,879.13 : 182,668.97 = 68,458.82 : x - Step 2: Convert to fraction form
121,879.13/182,668.97 = 68,458.82/x - Step 3: Cross multiply
121,879.13x = 182,668.97 × 68,458.82 - Step 4: Simplify right side
121,879.13x = 12,505,301,901.38 - Step 5: Solve for x
x = 12,505,301,901.38/121,879.13 - Step 6: Final answer
x = 102,604.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.