Finding the Fourth Proportional to 103,418.98, 155,128.88 and 68,350.84
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Solution
The fourth proportional to 103,418.98, 155,128.88 and 68,350.84 is: 102,526.53
Step by Step Solution
- Step 1: Write the proportion equation
103,418.98 : 155,128.88 = 68,350.84 : x - Step 2: Convert to fraction form
103,418.98/155,128.88 = 68,350.84/x - Step 3: Cross multiply
103,418.98x = 155,128.88 × 68,350.84 - Step 4: Simplify right side
103,418.98x = 10,603,189,256.26 - Step 5: Solve for x
x = 10,603,189,256.26/103,418.98 - Step 6: Final answer
x = 102,526.53
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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.