Finding the Fourth Proportional to 143,190.99, 197,591.97 and 82,765.53
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Solution
The fourth proportional to 143,190.99, 197,591.97 and 82,765.53 is: 114,209.73
Step by Step Solution
- Step 1: Write the proportion equation
143,190.99 : 197,591.97 = 82,765.53 : x - Step 2: Convert to fraction form
143,190.99/197,591.97 = 82,765.53/x - Step 3: Cross multiply
143,190.99x = 197,591.97 × 82,765.53 - Step 4: Simplify right side
143,190.99x = 16,353,804,431.16 - Step 5: Solve for x
x = 16,353,804,431.16/143,190.99 - Step 6: Final answer
x = 114,209.73
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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.