Finding the Fourth Proportional to 115,428.71, 173,197.74 and 79,944.63
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Solution
The fourth proportional to 115,428.71, 173,197.74 and 79,944.63 is: 119,954.82
Step by Step Solution
- Step 1: Write the proportion equation
115,428.71 : 173,197.74 = 79,944.63 : x - Step 2: Convert to fraction form
115,428.71/173,197.74 = 79,944.63/x - Step 3: Cross multiply
115,428.71x = 173,197.74 × 79,944.63 - Step 4: Simplify right side
115,428.71x = 13,846,229,241.14 - Step 5: Solve for x
x = 13,846,229,241.14/115,428.71 - Step 6: Final answer
x = 119,954.82
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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.