Finding the Fourth Proportional to 135,229.92, 186,612.84 and 74,799.60
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Solution
The fourth proportional to 135,229.92, 186,612.84 and 74,799.60 is: 103,220.99
Step by Step Solution
- Step 1: Write the proportion equation
135,229.92 : 186,612.84 = 74,799.60 : x - Step 2: Convert to fraction form
135,229.92/186,612.84 = 74,799.60/x - Step 3: Cross multiply
135,229.92x = 186,612.84 × 74,799.60 - Step 4: Simplify right side
135,229.92x = 13,958,565,786.86 - Step 5: Solve for x
x = 13,958,565,786.86/135,229.92 - Step 6: Final answer
x = 103,220.99
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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.