Finding the Fourth Proportional to 139,679.97, 192,624.35 and 93,843.17
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Solution
The fourth proportional to 139,679.97, 192,624.35 and 93,843.17 is: 129,413.53
Step by Step Solution
- Step 1: Write the proportion equation
139,679.97 : 192,624.35 = 93,843.17 : x - Step 2: Convert to fraction form
139,679.97/192,624.35 = 93,843.17/x - Step 3: Cross multiply
139,679.97x = 192,624.35 × 93,843.17 - Step 4: Simplify right side
139,679.97x = 18,076,478,190.85 - Step 5: Solve for x
x = 18,076,478,190.85/139,679.97 - Step 6: Final answer
x = 129,413.53
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1.5x scale
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.