Finding the Fourth Proportional to 102,361.93, 141,260.39 and 56,419.05
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Solution
The fourth proportional to 102,361.93, 141,260.39 and 56,419.05 is: 77,858.80
Step by Step Solution
- Step 1: Write the proportion equation
102,361.93 : 141,260.39 = 56,419.05 : x - Step 2: Convert to fraction form
102,361.93/141,260.39 = 56,419.05/x - Step 3: Cross multiply
102,361.93x = 141,260.39 × 56,419.05 - Step 4: Simplify right side
102,361.93x = 7,969,777,006.43 - Step 5: Solve for x
x = 7,969,777,006.43/102,361.93 - Step 6: Final answer
x = 77,858.80
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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.