Finding the Fourth Proportional to 142,593.21, 196,799.36 and 82,152.09
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Solution
The fourth proportional to 142,593.21, 196,799.36 and 82,152.09 is: 113,381.82
Step by Step Solution
- Step 1: Write the proportion equation
142,593.21 : 196,799.36 = 82,152.09 : x - Step 2: Convert to fraction form
142,593.21/196,799.36 = 82,152.09/x - Step 3: Cross multiply
142,593.21x = 196,799.36 × 82,152.09 - Step 4: Simplify right side
142,593.21x = 16,167,478,323.90 - Step 5: Solve for x
x = 16,167,478,323.90/142,593.21 - Step 6: Final answer
x = 113,381.82
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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.