Finding the Fourth Proportional to 129,245.74, 193,868.68 and 40,506.18
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Solution
The fourth proportional to 129,245.74, 193,868.68 and 40,506.18 is: 60,759.29
Step by Step Solution
- Step 1: Write the proportion equation
129,245.74 : 193,868.68 = 40,506.18 : x - Step 2: Convert to fraction form
129,245.74/193,868.68 = 40,506.18/x - Step 3: Cross multiply
129,245.74x = 193,868.68 × 40,506.18 - Step 4: Simplify right side
129,245.74x = 7,852,879,648.44 - Step 5: Solve for x
x = 7,852,879,648.44/129,245.74 - Step 6: Final answer
x = 60,759.29
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1.5x scale
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.