Finding the Fourth Proportional to 144,833.31, 199,858.97 and 81,158.81
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Solution
The fourth proportional to 144,833.31, 199,858.97 and 81,158.81 is: 111,992.99
Step by Step Solution
- Step 1: Write the proportion equation
144,833.31 : 199,858.97 = 81,158.81 : x - Step 2: Convert to fraction form
144,833.31/199,858.97 = 81,158.81/x - Step 3: Cross multiply
144,833.31x = 199,858.97 × 81,158.81 - Step 4: Simplify right side
144,833.31x = 16,220,315,376.63 - Step 5: Solve for x
x = 16,220,315,376.63/144,833.31 - Step 6: Final answer
x = 111,992.99
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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.