Finding the Fourth Proportional to 103,639.62, 155,450.49 and 63,102.62
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Solution
The fourth proportional to 103,639.62, 155,450.49 and 63,102.62 is: 94,648.49
Step by Step Solution
- Step 1: Write the proportion equation
103,639.62 : 155,450.49 = 63,102.62 : x - Step 2: Convert to fraction form
103,639.62/155,450.49 = 63,102.62/x - Step 3: Cross multiply
103,639.62x = 155,450.49 × 63,102.62 - Step 4: Simplify right side
103,639.62x = 9,809,333,199.28 - Step 5: Solve for x
x = 9,809,333,199.28/103,639.62 - Step 6: Final answer
x = 94,648.49
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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.