Finding the Fourth Proportional to 102,949.92, 154,163.52 and 86,266.08
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Solution
The fourth proportional to 102,949.92, 154,163.52 and 86,266.08 is: 129,180.12
Step by Step Solution
- Step 1: Write the proportion equation
102,949.92 : 154,163.52 = 86,266.08 : x - Step 2: Convert to fraction form
102,949.92/154,163.52 = 86,266.08/x - Step 3: Cross multiply
102,949.92x = 154,163.52 × 86,266.08 - Step 4: Simplify right side
102,949.92x = 13,299,082,549.40 - Step 5: Solve for x
x = 13,299,082,549.40/102,949.92 - Step 6: Final answer
x = 129,180.12
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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.