Finding the Fourth Proportional to 149,755.21, 206,663.19 and 81,772.66
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Solution
The fourth proportional to 149,755.21, 206,663.19 and 81,772.66 is: 112,846.82
Step by Step Solution
- Step 1: Write the proportion equation
149,755.21 : 206,663.19 = 81,772.66 : x - Step 2: Convert to fraction form
149,755.21/206,663.19 = 81,772.66/x - Step 3: Cross multiply
149,755.21x = 206,663.19 × 81,772.66 - Step 4: Simplify right side
149,755.21x = 16,899,398,716.49 - Step 5: Solve for x
x = 16,899,398,716.49/149,755.21 - Step 6: Final answer
x = 112,846.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.