Finding the Fourth Proportional to 103,640.62, 155,451.99 and 63,103.62
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Solution
The fourth proportional to 103,640.62, 155,451.99 and 63,103.62 is: 94,649.99
Step by Step Solution
- Step 1: Write the proportion equation
103,640.62 : 155,451.99 = 63,103.62 : x - Step 2: Convert to fraction form
103,640.62/155,451.99 = 63,103.62/x - Step 3: Cross multiply
103,640.62x = 155,451.99 × 63,103.62 - Step 4: Simplify right side
103,640.62x = 9,809,583,305.20 - Step 5: Solve for x
x = 9,809,583,305.20/103,640.62 - Step 6: Final answer
x = 94,649.99
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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.