Finding the Fourth Proportional to 142,899.75, 214,358.60 and 48,122.19
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Solution
The fourth proportional to 142,899.75, 214,358.60 and 48,122.19 is: 72,186.31
Step by Step Solution
- Step 1: Write the proportion equation
142,899.75 : 214,358.60 = 48,122.19 : x - Step 2: Convert to fraction form
142,899.75/214,358.60 = 48,122.19/x - Step 3: Cross multiply
142,899.75x = 214,358.60 × 48,122.19 - Step 4: Simplify right side
142,899.75x = 10,315,405,397.64 - Step 5: Solve for x
x = 10,315,405,397.64/142,899.75 - Step 6: Final answer
x = 72,186.31
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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.