Finding the Fourth Proportional to 134,743.80, 202,115.70 and 82,255.80
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Solution
The fourth proportional to 134,743.80, 202,115.70 and 82,255.80 is: 123,383.70
Step by Step Solution
- Step 1: Write the proportion equation
134,743.80 : 202,115.70 = 82,255.80 : x - Step 2: Convert to fraction form
134,743.80/202,115.70 = 82,255.80/x - Step 3: Cross multiply
134,743.80x = 202,115.70 × 82,255.80 - Step 4: Simplify right side
134,743.80x = 16,625,188,596.06 - Step 5: Solve for x
x = 16,625,188,596.06/134,743.80 - Step 6: Final answer
x = 123,383.70
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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.