Finding the Fourth Proportional to 126,316.95, 174,311.26 and 71,863.99
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Solution
The fourth proportional to 126,316.95, 174,311.26 and 71,863.99 is: 99,168.81
Step by Step Solution
- Step 1: Write the proportion equation
126,316.95 : 174,311.26 = 71,863.99 : x - Step 2: Convert to fraction form
126,316.95/174,311.26 = 71,863.99/x - Step 3: Cross multiply
126,316.95x = 174,311.26 × 71,863.99 - Step 4: Simplify right side
126,316.95x = 12,526,701,414.65 - Step 5: Solve for x
x = 12,526,701,414.65/126,316.95 - Step 6: Final answer
x = 99,168.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.