Finding the Fourth Proportional to 131,704.35, 181,751.99 and 71,274.99
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Solution
The fourth proportional to 131,704.35, 181,751.99 and 71,274.99 is: 98,359.48
Step by Step Solution
- Step 1: Write the proportion equation
131,704.35 : 181,751.99 = 71,274.99 : x - Step 2: Convert to fraction form
131,704.35/181,751.99 = 71,274.99/x - Step 3: Cross multiply
131,704.35x = 181,751.99 × 71,274.99 - Step 4: Simplify right side
131,704.35x = 12,954,370,913.36 - Step 5: Solve for x
x = 12,954,370,913.36/131,704.35 - Step 6: Final answer
x = 98,359.48
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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.