Finding the Fourth Proportional to 99,546.49, 149,413.53 and 66,289.81
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Solution
The fourth proportional to 99,546.49, 149,413.53 and 66,289.81 is: 99,497.17
Step by Step Solution
- Step 1: Write the proportion equation
99,546.49 : 149,413.53 = 66,289.81 : x - Step 2: Convert to fraction form
99,546.49/149,413.53 = 66,289.81/x - Step 3: Cross multiply
99,546.49x = 149,413.53 × 66,289.81 - Step 4: Simplify right side
99,546.49x = 9,904,594,515.13 - Step 5: Solve for x
x = 9,904,594,515.13/99,546.49 - Step 6: Final answer
x = 99,497.17
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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.