Finding the Fourth Proportional to 117,179.76, 161,707.68 and 63,464.64
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Solution
The fourth proportional to 117,179.76, 161,707.68 and 63,464.64 is: 87,580.99
Step by Step Solution
- Step 1: Write the proportion equation
117,179.76 : 161,707.68 = 63,464.64 : x - Step 2: Convert to fraction form
117,179.76/161,707.68 = 63,464.64/x - Step 3: Cross multiply
117,179.76x = 161,707.68 × 63,464.64 - Step 4: Simplify right side
117,179.76x = 10,262,719,696.44 - Step 5: Solve for x
x = 10,262,719,696.44/117,179.76 - Step 6: Final answer
x = 87,580.99
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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.