Finding the Fourth Proportional to 103,542.63, 155,314.16 and 28,662.99
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Solution
The fourth proportional to 103,542.63, 155,314.16 and 28,662.99 is: 42,994.54
Step by Step Solution
- Step 1: Write the proportion equation
103,542.63 : 155,314.16 = 28,662.99 : x - Step 2: Convert to fraction form
103,542.63/155,314.16 = 28,662.99/x - Step 3: Cross multiply
103,542.63x = 155,314.16 × 28,662.99 - Step 4: Simplify right side
103,542.63x = 4,451,768,071.62 - Step 5: Solve for x
x = 4,451,768,071.62/103,542.63 - Step 6: Final answer
x = 42,994.54
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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.