Finding the Fourth Proportional to 117,182.80, 161,712.68 and 63,467.68
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Solution
The fourth proportional to 117,182.80, 161,712.68 and 63,467.68 is: 87,585.62
Step by Step Solution
- Step 1: Write the proportion equation
117,182.80 : 161,712.68 = 63,467.68 : x - Step 2: Convert to fraction form
117,182.80/161,712.68 = 63,467.68/x - Step 3: Cross multiply
117,182.80x = 161,712.68 × 63,467.68 - Step 4: Simplify right side
117,182.80x = 10,263,528,626.18 - Step 5: Solve for x
x = 10,263,528,626.18/117,182.80 - Step 6: Final answer
x = 87,585.62
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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.