Finding the Fourth Proportional to 136,942.20, 205,413.30 and 48,295.80
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Solution
The fourth proportional to 136,942.20, 205,413.30 and 48,295.80 is: 72,443.70
Step by Step Solution
- Step 1: Write the proportion equation
136,942.20 : 205,413.30 = 48,295.80 : x - Step 2: Convert to fraction form
136,942.20/205,413.30 = 48,295.80/x - Step 3: Cross multiply
136,942.20x = 205,413.30 × 48,295.80 - Step 4: Simplify right side
136,942.20x = 9,920,599,654.14 - Step 5: Solve for x
x = 9,920,599,654.14/136,942.20 - Step 6: Final answer
x = 72,443.70
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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.