Finding the Fourth Proportional to 117,243.08, 161,794.76 and 66,272.31
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Solution
The fourth proportional to 117,243.08, 161,794.76 and 66,272.31 is: 91,455.40
Step by Step Solution
- Step 1: Write the proportion equation
117,243.08 : 161,794.76 = 66,272.31 : x - Step 2: Convert to fraction form
117,243.08/161,794.76 = 66,272.31/x - Step 3: Cross multiply
117,243.08x = 161,794.76 × 66,272.31 - Step 4: Simplify right side
117,243.08x = 10,722,512,159.73 - Step 5: Solve for x
x = 10,722,512,159.73/117,243.08 - Step 6: Final answer
x = 91,455.40
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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.