Finding the Fourth Proportional to 68,142.74, 102,206.92 and 18,227.88
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Solution
The fourth proportional to 68,142.74, 102,206.92 and 18,227.88 is: 27,339.89
Step by Step Solution
- Step 1: Write the proportion equation
68,142.74 : 102,206.92 = 18,227.88 : x - Step 2: Convert to fraction form
68,142.74/102,206.92 = 18,227.88/x - Step 3: Cross multiply
68,142.74x = 102,206.92 × 18,227.88 - Step 4: Simplify right side
68,142.74x = 1,863,014,961.90 - Step 5: Solve for x
x = 1,863,014,961.90/68,142.74 - Step 6: Final answer
x = 27,339.89
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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.