Finding the Fourth Proportional to 129,280.19, 193,786.49 and 49,296.62
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Solution
The fourth proportional to 129,280.19, 193,786.49 and 49,296.62 is: 73,893.91
Step by Step Solution
- Step 1: Write the proportion equation
129,280.19 : 193,786.49 = 49,296.62 : x - Step 2: Convert to fraction form
129,280.19/193,786.49 = 49,296.62/x - Step 3: Cross multiply
129,280.19x = 193,786.49 × 49,296.62 - Step 4: Simplify right side
129,280.19x = 9,553,017,743.25 - Step 5: Solve for x
x = 9,553,017,743.25/129,280.19 - Step 6: Final answer
x = 73,893.91
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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.