Finding the Fourth Proportional to 131,977.62, 182,126.88 and 74,615.99
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Solution
The fourth proportional to 131,977.62, 182,126.88 and 74,615.99 is: 102,968.80
Step by Step Solution
- Step 1: Write the proportion equation
131,977.62 : 182,126.88 = 74,615.99 : x - Step 2: Convert to fraction form
131,977.62/182,126.88 = 74,615.99/x - Step 3: Cross multiply
131,977.62x = 182,126.88 × 74,615.99 - Step 4: Simplify right side
131,977.62x = 13,589,576,546.18 - Step 5: Solve for x
x = 13,589,576,546.18/131,977.62 - Step 6: Final answer
x = 102,968.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.