Finding the Fourth Proportional to 121,413.20, 182,119.80 and 88,365.20
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Solution
The fourth proportional to 121,413.20, 182,119.80 and 88,365.20 is: 132,547.80
Step by Step Solution
- Step 1: Write the proportion equation
121,413.20 : 182,119.80 = 88,365.20 : x - Step 2: Convert to fraction form
121,413.20/182,119.80 = 88,365.20/x - Step 3: Cross multiply
121,413.20x = 182,119.80 × 88,365.20 - Step 4: Simplify right side
121,413.20x = 16,093,052,550.96 - Step 5: Solve for x
x = 16,093,052,550.96/121,413.20 - Step 6: Final answer
x = 132,547.80
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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.