Finding the Fourth Proportional to 103,678.67, 155,542.70 and 33,557.99
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Solution
The fourth proportional to 103,678.67, 155,542.70 and 33,557.99 is: 50,344.98
Step by Step Solution
- Step 1: Write the proportion equation
103,678.67 : 155,542.70 = 33,557.99 : x - Step 2: Convert to fraction form
103,678.67/155,542.70 = 33,557.99/x - Step 3: Cross multiply
103,678.67x = 155,542.70 × 33,557.99 - Step 4: Simplify right side
103,678.67x = 5,219,700,371.17 - Step 5: Solve for x
x = 5,219,700,371.17/103,678.67 - Step 6: Final answer
x = 50,344.98
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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.