Finding the Fourth Proportional to 135,170.74, 186,530.34 and 80,732.14
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Solution
The fourth proportional to 135,170.74, 186,530.34 and 80,732.14 is: 111,407.20
Step by Step Solution
- Step 1: Write the proportion equation
135,170.74 : 186,530.34 = 80,732.14 : x - Step 2: Convert to fraction form
135,170.74/186,530.34 = 80,732.14/x - Step 3: Cross multiply
135,170.74x = 186,530.34 × 80,732.14 - Step 4: Simplify right side
135,170.74x = 15,058,993,523.13 - Step 5: Solve for x
x = 15,058,993,523.13/135,170.74 - Step 6: Final answer
x = 111,407.20
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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.