Finding the Fourth Proportional to 106,236.96, 159,453.84 and 53,683.20
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Solution
The fourth proportional to 106,236.96, 159,453.84 and 53,683.20 is: 80,574.52
Step by Step Solution
- Step 1: Write the proportion equation
106,236.96 : 159,453.84 = 53,683.20 : x - Step 2: Convert to fraction form
106,236.96/159,453.84 = 53,683.20/x - Step 3: Cross multiply
106,236.96x = 159,453.84 × 53,683.20 - Step 4: Simplify right side
106,236.96x = 8,559,992,383.49 - Step 5: Solve for x
x = 8,559,992,383.49/106,236.96 - Step 6: Final answer
x = 80,574.52
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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.