Finding the Fourth Proportional to 118,213.62, 163,133.37 and 67,912.62
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Solution
The fourth proportional to 118,213.62, 163,133.37 and 67,912.62 is: 93,718.60
Step by Step Solution
- Step 1: Write the proportion equation
118,213.62 : 163,133.37 = 67,912.62 : x - Step 2: Convert to fraction form
118,213.62/163,133.37 = 67,912.62/x - Step 3: Cross multiply
118,213.62x = 163,133.37 × 67,912.62 - Step 4: Simplify right side
118,213.62x = 11,078,814,566.13 - Step 5: Solve for x
x = 11,078,814,566.13/118,213.62 - Step 6: Final answer
x = 93,718.60
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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.