Finding the Fourth Proportional to 135,976.44, 187,649.10 and 82,267.32
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Solution
The fourth proportional to 135,976.44, 187,649.10 and 82,267.32 is: 113,529.88
Step by Step Solution
- Step 1: Write the proportion equation
135,976.44 : 187,649.10 = 82,267.32 : x - Step 2: Convert to fraction form
135,976.44/187,649.10 = 82,267.32/x - Step 3: Cross multiply
135,976.44x = 187,649.10 × 82,267.32 - Step 4: Simplify right side
135,976.44x = 15,437,388,557.41 - Step 5: Solve for x
x = 15,437,388,557.41/135,976.44 - Step 6: Final answer
x = 113,529.88
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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.