Finding the Fourth Proportional to 117,709.65, 162,439.97 and 69,313.68
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Solution
The fourth proportional to 117,709.65, 162,439.97 and 69,313.68 is: 95,653.26
Step by Step Solution
- Step 1: Write the proportion equation
117,709.65 : 162,439.97 = 69,313.68 : x - Step 2: Convert to fraction form
117,709.65/162,439.97 = 69,313.68/x - Step 3: Cross multiply
117,709.65x = 162,439.97 × 69,313.68 - Step 4: Simplify right side
117,709.65x = 11,259,311,753.22 - Step 5: Solve for x
x = 11,259,311,753.22/117,709.65 - Step 6: Final answer
x = 95,653.26
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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.