Finding the Fourth Proportional to 142,131.77, 212,964.36 and 48,586.49
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Solution
The fourth proportional to 142,131.77, 212,964.36 and 48,586.49 is: 72,799.99
Step by Step Solution
- Step 1: Write the proportion equation
142,131.77 : 212,964.36 = 48,586.49 : x - Step 2: Convert to fraction form
142,131.77/212,964.36 = 48,586.49/x - Step 3: Cross multiply
142,131.77x = 212,964.36 × 48,586.49 - Step 4: Simplify right side
142,131.77x = 10,347,190,747.50 - Step 5: Solve for x
x = 10,347,190,747.50/142,131.77 - Step 6: Final answer
x = 72,799.99
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1.5x scale
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.