Finding the Fourth Proportional to 68,144.81, 102,210.01 and 18,229.94
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Solution
The fourth proportional to 68,144.81, 102,210.01 and 18,229.94 is: 27,342.98
Step by Step Solution
- Step 1: Write the proportion equation
68,144.81 : 102,210.01 = 18,229.94 : x - Step 2: Convert to fraction form
68,144.81/102,210.01 = 18,229.94/x - Step 3: Cross multiply
68,144.81x = 102,210.01 × 18,229.94 - Step 4: Simplify right side
68,144.81x = 1,863,282,349.70 - Step 5: Solve for x
x = 1,863,282,349.70/68,144.81 - Step 6: Final answer
x = 27,342.98
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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.