Finding the Fourth Proportional to 68,135.00, 102,207.69 and 20,754.09
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Solution
The fourth proportional to 68,135.00, 102,207.69 and 20,754.09 is: 31,132.72
Step by Step Solution
- Step 1: Write the proportion equation
68,135.00 : 102,207.69 = 20,754.09 : x - Step 2: Convert to fraction form
68,135.00/102,207.69 = 20,754.09/x - Step 3: Cross multiply
68,135.00x = 102,207.69 × 20,754.09 - Step 4: Simplify right side
68,135.00x = 2,121,227,596.95 - Step 5: Solve for x
x = 2,121,227,596.95/68,135.00 - Step 6: Final answer
x = 31,132.72
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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.