Finding the Fourth Proportional to 86,267.44, 129,180.84 and 68,762.80
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Solution
The fourth proportional to 86,267.44, 129,180.84 and 68,762.80 is: 102,968.59
Step by Step Solution
- Step 1: Write the proportion equation
86,267.44 : 129,180.84 = 68,762.80 : x - Step 2: Convert to fraction form
86,267.44/129,180.84 = 68,762.80/x - Step 3: Cross multiply
86,267.44x = 129,180.84 × 68,762.80 - Step 4: Simplify right side
86,267.44x = 8,882,836,264.75 - Step 5: Solve for x
x = 8,882,836,264.75/86,267.44 - Step 6: Final answer
x = 102,968.59
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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.