Finding the Fourth Proportional to 128,413.60, 192,850.80 and 93,392.80
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Solution
The fourth proportional to 128,413.60, 192,850.80 and 93,392.80 is: 140,256.77
Step by Step Solution
- Step 1: Write the proportion equation
128,413.60 : 192,850.80 = 93,392.80 : x - Step 2: Convert to fraction form
128,413.60/192,850.80 = 93,392.80/x - Step 3: Cross multiply
128,413.60x = 192,850.80 × 93,392.80 - Step 4: Simplify right side
128,413.60x = 18,010,876,194.24 - Step 5: Solve for x
x = 18,010,876,194.24/128,413.60 - Step 6: Final answer
x = 140,256.77
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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.