Finding the Fourth Proportional to 102,441.05, 141,361.43 and 57,117.09
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Solution
The fourth proportional to 102,441.05, 141,361.43 and 57,117.09 is: 78,817.56
Step by Step Solution
- Step 1: Write the proportion equation
102,441.05 : 141,361.43 = 57,117.09 : x - Step 2: Convert to fraction form
102,441.05/141,361.43 = 57,117.09/x - Step 3: Cross multiply
102,441.05x = 141,361.43 × 57,117.09 - Step 4: Simplify right side
102,441.05x = 8,074,153,234.25 - Step 5: Solve for x
x = 8,074,153,234.25/102,441.05 - Step 6: Final answer
x = 78,817.56
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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.