Finding the Fourth Proportional to 98,213.74, 147,221.97 and 31,604.92
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Solution
The fourth proportional to 98,213.74, 147,221.97 and 31,604.92 is: 47,375.64
Step by Step Solution
- Step 1: Write the proportion equation
98,213.74 : 147,221.97 = 31,604.92 : x - Step 2: Convert to fraction form
98,213.74/147,221.97 = 31,604.92/x - Step 3: Cross multiply
98,213.74x = 147,221.97 × 31,604.92 - Step 4: Simplify right side
98,213.74x = 4,652,938,584.09 - Step 5: Solve for x
x = 4,652,938,584.09/98,213.74 - Step 6: Final answer
x = 47,375.64
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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.