Finding the Fourth Proportional to 106,813.44, 160,218.41 and 43,619.67
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Solution
The fourth proportional to 106,813.44, 160,218.41 and 43,619.67 is: 65,428.79
Step by Step Solution
- Step 1: Write the proportion equation
106,813.44 : 160,218.41 = 43,619.67 : x - Step 2: Convert to fraction form
106,813.44/160,218.41 = 43,619.67/x - Step 3: Cross multiply
106,813.44x = 160,218.41 × 43,619.67 - Step 4: Simplify right side
106,813.44x = 6,988,673,954.03 - Step 5: Solve for x
x = 6,988,673,954.03/106,813.44 - Step 6: Final answer
x = 65,428.79
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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.