Finding the Fourth Proportional to 120,754.20, 181,304.10 and 68,266.20
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Solution
The fourth proportional to 120,754.20, 181,304.10 and 68,266.20 is: 102,496.99
Step by Step Solution
- Step 1: Write the proportion equation
120,754.20 : 181,304.10 = 68,266.20 : x - Step 2: Convert to fraction form
120,754.20/181,304.10 = 68,266.20/x - Step 3: Cross multiply
120,754.20x = 181,304.10 × 68,266.20 - Step 4: Simplify right side
120,754.20x = 12,376,941,951.42 - Step 5: Solve for x
x = 12,376,941,951.42/120,754.20 - Step 6: Final answer
x = 102,496.99
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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.