Finding the Fourth Proportional to 135,169.74, 186,528.96 and 80,731.14
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Solution
The fourth proportional to 135,169.74, 186,528.96 and 80,731.14 is: 111,405.82
Step by Step Solution
- Step 1: Write the proportion equation
135,169.74 : 186,528.96 = 80,731.14 : x - Step 2: Convert to fraction form
135,169.74/186,528.96 = 80,731.14/x - Step 3: Cross multiply
135,169.74x = 186,528.96 × 80,731.14 - Step 4: Simplify right side
135,169.74x = 15,058,695,583.81 - Step 5: Solve for x
x = 15,058,695,583.81/135,169.74 - Step 6: Final answer
x = 111,405.82
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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.