Finding the Fourth Proportional to 154,652.49, 213,413.99 and 87,584.49
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Solution
The fourth proportional to 154,652.49, 213,413.99 and 87,584.49 is: 120,862.94
Step by Step Solution
- Step 1: Write the proportion equation
154,652.49 : 213,413.99 = 87,584.49 : x - Step 2: Convert to fraction form
154,652.49/213,413.99 = 87,584.49/x - Step 3: Cross multiply
154,652.49x = 213,413.99 × 87,584.49 - Step 4: Simplify right side
154,652.49x = 18,691,755,035.09 - Step 5: Solve for x
x = 18,691,755,035.09/154,652.49 - Step 6: Final answer
x = 120,862.94
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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.