Finding the Fourth Proportional to 112,701.99, 155,517.98 and 67,370.97
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Solution
The fourth proportional to 112,701.99, 155,517.98 and 67,370.97 is: 92,965.50
Step by Step Solution
- Step 1: Write the proportion equation
112,701.99 : 155,517.98 = 67,370.97 : x - Step 2: Convert to fraction form
112,701.99/155,517.98 = 67,370.97/x - Step 3: Cross multiply
112,701.99x = 155,517.98 × 67,370.97 - Step 4: Simplify right side
112,701.99x = 10,477,396,828.19 - Step 5: Solve for x
x = 10,477,396,828.19/112,701.99 - Step 6: Final answer
x = 92,965.50
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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.