Finding the Fourth Proportional to 106,902.99, 160,413.21 and 54,316.98
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Solution
The fourth proportional to 106,902.99, 160,413.21 and 54,316.98 is: 81,505.31
Step by Step Solution
- Step 1: Write the proportion equation
106,902.99 : 160,413.21 = 54,316.98 : x - Step 2: Convert to fraction form
106,902.99/160,413.21 = 54,316.98/x - Step 3: Cross multiply
106,902.99x = 160,413.21 × 54,316.98 - Step 4: Simplify right side
106,902.99x = 8,713,161,119.31 - Step 5: Solve for x
x = 8,713,161,119.31/106,902.99 - Step 6: Final answer
x = 81,505.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.