Finding the Fourth Proportional to 198,135.09, 273,427.43 and 107,494.88
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Solution
The fourth proportional to 198,135.09, 273,427.43 and 107,494.88 is: 148,343.47
Step by Step Solution
- Step 1: Write the proportion equation
198,135.09 : 273,427.43 = 107,494.88 : x - Step 2: Convert to fraction form
198,135.09/273,427.43 = 107,494.88/x - Step 3: Cross multiply
198,135.09x = 273,427.43 × 107,494.88 - Step 4: Simplify right side
198,135.09x = 29,392,046,871.95 - Step 5: Solve for x
x = 29,392,046,871.95/198,135.09 - Step 6: Final answer
x = 148,343.47
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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.