Finding the Fourth Proportional to 112,017.99, 154,584.74 and 61,716.99
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Solution
The fourth proportional to 112,017.99, 154,584.74 and 61,716.99 is: 85,169.40
Step by Step Solution
- Step 1: Write the proportion equation
112,017.99 : 154,584.74 = 61,716.99 : x - Step 2: Convert to fraction form
112,017.99/154,584.74 = 61,716.99/x - Step 3: Cross multiply
112,017.99x = 154,584.74 × 61,716.99 - Step 4: Simplify right side
112,017.99x = 9,540,504,544.15 - Step 5: Solve for x
x = 9,540,504,544.15/112,017.99 - Step 6: Final answer
x = 85,169.40
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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.