Finding the Fourth Proportional to 103,638.62, 155,448.99 and 63,101.62
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Solution
The fourth proportional to 103,638.62, 155,448.99 and 63,101.62 is: 94,646.99
Step by Step Solution
- Step 1: Write the proportion equation
103,638.62 : 155,448.99 = 63,101.62 : x - Step 2: Convert to fraction form
103,638.62/155,448.99 = 63,101.62/x - Step 3: Cross multiply
103,638.62x = 155,448.99 × 63,101.62 - Step 4: Simplify right side
103,638.62x = 9,809,083,096.36 - Step 5: Solve for x
x = 9,809,083,096.36/103,638.62 - Step 6: Final answer
x = 94,646.99
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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.