Finding the Fourth Proportional to 68,136.96, 102,190.08 and 18,892.80
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Solution
The fourth proportional to 68,136.96, 102,190.08 and 18,892.80 is: 28,334.94
Step by Step Solution
- Step 1: Write the proportion equation
68,136.96 : 102,190.08 = 18,892.80 : x - Step 2: Convert to fraction form
68,136.96/102,190.08 = 18,892.80/x - Step 3: Cross multiply
68,136.96x = 102,190.08 × 18,892.80 - Step 4: Simplify right side
68,136.96x = 1,930,656,743.42 - Step 5: Solve for x
x = 1,930,656,743.42/68,136.96 - Step 6: Final answer
x = 28,334.94
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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.