Finding the Fourth Proportional to 103,622.67, 155,433.99 and 68,554.14
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Solution
The fourth proportional to 103,622.67, 155,433.99 and 68,554.14 is: 102,831.20
Step by Step Solution
- Step 1: Write the proportion equation
103,622.67 : 155,433.99 = 68,554.14 : x - Step 2: Convert to fraction form
103,622.67/155,433.99 = 68,554.14/x - Step 3: Cross multiply
103,622.67x = 155,433.99 × 68,554.14 - Step 4: Simplify right side
103,622.67x = 10,655,643,511.22 - Step 5: Solve for x
x = 10,655,643,511.22/103,622.67 - Step 6: Final answer
x = 102,831.20
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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.