Finding the Fourth Proportional to 68,117.75, 102,176.67 and 18,869.75
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Solution
The fourth proportional to 68,117.75, 102,176.67 and 18,869.75 is: 28,304.64
Step by Step Solution
- Step 1: Write the proportion equation
68,117.75 : 102,176.67 = 18,869.75 : x - Step 2: Convert to fraction form
68,117.75/102,176.67 = 18,869.75/x - Step 3: Cross multiply
68,117.75x = 102,176.67 × 18,869.75 - Step 4: Simplify right side
68,117.75x = 1,928,048,218.73 - Step 5: Solve for x
x = 1,928,048,218.73/68,117.75 - Step 6: Final answer
x = 28,304.64
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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.