Finding the Fourth Proportional to 68,090.14, 102,135.23 and 18,170.42
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Solution
The fourth proportional to 68,090.14, 102,135.23 and 18,170.42 is: 27,255.64
Step by Step Solution
- Step 1: Write the proportion equation
68,090.14 : 102,135.23 = 18,170.42 : x - Step 2: Convert to fraction form
68,090.14/102,135.23 = 18,170.42/x - Step 3: Cross multiply
68,090.14x = 102,135.23 × 18,170.42 - Step 4: Simplify right side
68,090.14x = 1,855,840,025.90 - Step 5: Solve for x
x = 1,855,840,025.90/68,090.14 - Step 6: Final answer
x = 27,255.64
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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.