Finding the Fourth Proportional to 135,012.80, 202,130.40 and 82,524.80
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Solution
The fourth proportional to 135,012.80, 202,130.40 and 82,524.80 is: 123,549.55
Step by Step Solution
- Step 1: Write the proportion equation
135,012.80 : 202,130.40 = 82,524.80 : x - Step 2: Convert to fraction form
135,012.80/202,130.40 = 82,524.80/x - Step 3: Cross multiply
135,012.80x = 202,130.40 × 82,524.80 - Step 4: Simplify right side
135,012.80x = 16,680,770,833.92 - Step 5: Solve for x
x = 16,680,770,833.92/135,012.80 - Step 6: Final answer
x = 123,549.55
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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.