Finding the Fourth Proportional to 68,135.24, 102,207.95 and 18,214.19
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Solution
The fourth proportional to 68,135.24, 102,207.95 and 18,214.19 is: 27,322.64
Step by Step Solution
- Step 1: Write the proportion equation
68,135.24 : 102,207.95 = 18,214.19 : x - Step 2: Convert to fraction form
68,135.24/102,207.95 = 18,214.19/x - Step 3: Cross multiply
68,135.24x = 102,207.95 × 18,214.19 - Step 4: Simplify right side
68,135.24x = 1,861,634,418.70 - Step 5: Solve for x
x = 1,861,634,418.70/68,135.24 - Step 6: Final answer
x = 27,322.64
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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.