Finding the Fourth Proportional to 124,879.73, 172,338.67 and 71,163.36
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Solution
The fourth proportional to 124,879.73, 172,338.67 and 71,163.36 is: 98,208.09
Step by Step Solution
- Step 1: Write the proportion equation
124,879.73 : 172,338.67 = 71,163.36 : x - Step 2: Convert to fraction form
124,879.73/172,338.67 = 71,163.36/x - Step 3: Cross multiply
124,879.73x = 172,338.67 × 71,163.36 - Step 4: Simplify right side
124,879.73x = 12,264,198,904.09 - Step 5: Solve for x
x = 12,264,198,904.09/124,879.73 - Step 6: Final answer
x = 98,208.09
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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.