Finding the Fourth Proportional to 147,413.80, 220,858.26 and 68,390.20
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Solution
The fourth proportional to 147,413.80, 220,858.26 and 68,390.20 is: 102,463.55
Step by Step Solution
- Step 1: Write the proportion equation
147,413.80 : 220,858.26 = 68,390.20 : x - Step 2: Convert to fraction form
147,413.80/220,858.26 = 68,390.20/x - Step 3: Cross multiply
147,413.80x = 220,858.26 × 68,390.20 - Step 4: Simplify right side
147,413.80x = 15,104,540,573.05 - Step 5: Solve for x
x = 15,104,540,573.05/147,413.80 - Step 6: Final answer
x = 102,463.55
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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.