Finding the Fourth Proportional to 131,220.75, 196,860.29 and 48,114.75
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Solution
The fourth proportional to 131,220.75, 196,860.29 and 48,114.75 is: 72,182.82
Step by Step Solution
- Step 1: Write the proportion equation
131,220.75 : 196,860.29 = 48,114.75 : x - Step 2: Convert to fraction form
131,220.75/196,860.29 = 48,114.75/x - Step 3: Cross multiply
131,220.75x = 196,860.29 × 48,114.75 - Step 4: Simplify right side
131,220.75x = 9,471,883,397.70 - Step 5: Solve for x
x = 9,471,883,397.70/131,220.75 - Step 6: Final answer
x = 72,182.82
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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.