Finding the Fourth Proportional to 140,413.14, 193,770.12 and 76,751.19
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Solution
The fourth proportional to 140,413.14, 193,770.12 and 76,751.19 is: 105,916.63
Step by Step Solution
- Step 1: Write the proportion equation
140,413.14 : 193,770.12 = 76,751.19 : x - Step 2: Convert to fraction form
140,413.14/193,770.12 = 76,751.19/x - Step 3: Cross multiply
140,413.14x = 193,770.12 × 76,751.19 - Step 4: Simplify right side
140,413.14x = 14,872,087,296.44 - Step 5: Solve for x
x = 14,872,087,296.44/140,413.14 - Step 6: Final answer
x = 105,916.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.