Finding the Fourth Proportional to 107,439.09, 161,102.94 and 56,865.53
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Solution
The fourth proportional to 107,439.09, 161,102.94 and 56,865.53 is: 85,268.82
Step by Step Solution
- Step 1: Write the proportion equation
107,439.09 : 161,102.94 = 56,865.53 : x - Step 2: Convert to fraction form
107,439.09/161,102.94 = 56,865.53/x - Step 3: Cross multiply
107,439.09x = 161,102.94 × 56,865.53 - Step 4: Simplify right side
107,439.09x = 9,161,204,067.66 - Step 5: Solve for x
x = 9,161,204,067.66/107,439.09 - Step 6: Final answer
x = 85,268.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.