Finding the Fourth Proportional to 100,860.63, 151,149.34 and 79,707.68
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Solution
The fourth proportional to 100,860.63, 151,149.34 and 79,707.68 is: 119,449.62
Step by Step Solution
- Step 1: Write the proportion equation
100,860.63 : 151,149.34 = 79,707.68 : x - Step 2: Convert to fraction form
100,860.63/151,149.34 = 79,707.68/x - Step 3: Cross multiply
100,860.63x = 151,149.34 × 79,707.68 - Step 4: Simplify right side
100,860.63x = 12,047,763,135.63 - Step 5: Solve for x
x = 12,047,763,135.63/100,860.63 - Step 6: Final answer
x = 119,449.62
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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.