Finding the Fourth Proportional to 103,855.19, 155,720.39 and 40,599.97
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Solution
The fourth proportional to 103,855.19, 155,720.39 and 40,599.97 is: 60,875.56
Step by Step Solution
- Step 1: Write the proportion equation
103,855.19 : 155,720.39 = 40,599.97 : x - Step 2: Convert to fraction form
103,855.19/155,720.39 = 40,599.97/x - Step 3: Cross multiply
103,855.19x = 155,720.39 × 40,599.97 - Step 4: Simplify right side
103,855.19x = 6,322,242,874.59 - Step 5: Solve for x
x = 6,322,242,874.59/103,855.19 - Step 6: Final answer
x = 60,875.56
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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.