Finding the Fourth Proportional to 78,197.97, 117,278.97 and 46,616.95
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Solution
The fourth proportional to 78,197.97, 117,278.97 and 46,616.95 is: 69,914.70
Step by Step Solution
- Step 1: Write the proportion equation
78,197.97 : 117,278.97 = 46,616.95 : x - Step 2: Convert to fraction form
78,197.97/117,278.97 = 46,616.95/x - Step 3: Cross multiply
78,197.97x = 117,278.97 × 46,616.95 - Step 4: Simplify right side
78,197.97x = 5,467,187,880.54 - Step 5: Solve for x
x = 5,467,187,880.54/78,197.97 - Step 6: Final answer
x = 69,914.70
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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.