Finding the Fourth Proportional to 86,266.44, 129,179.34 and 68,761.80
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Solution
The fourth proportional to 86,266.44, 129,179.34 and 68,761.80 is: 102,967.09
Step by Step Solution
- Step 1: Write the proportion equation
86,266.44 : 129,179.34 = 68,761.80 : x - Step 2: Convert to fraction form
86,266.44/129,179.34 = 68,761.80/x - Step 3: Cross multiply
86,266.44x = 129,179.34 × 68,761.80 - Step 4: Simplify right side
86,266.44x = 8,882,603,941.21 - Step 5: Solve for x
x = 8,882,603,941.21/86,266.44 - Step 6: Final answer
x = 102,967.09
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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.