Finding the Fourth Proportional to 117,003.43, 161,464.76 and 66,026.99
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Solution
The fourth proportional to 117,003.43, 161,464.76 and 66,026.99 is: 91,117.26
Step by Step Solution
- Step 1: Write the proportion equation
117,003.43 : 161,464.76 = 66,026.99 : x - Step 2: Convert to fraction form
117,003.43/161,464.76 = 66,026.99/x - Step 3: Cross multiply
117,003.43x = 161,464.76 × 66,026.99 - Step 4: Simplify right side
117,003.43x = 10,661,032,093.87 - Step 5: Solve for x
x = 10,661,032,093.87/117,003.43 - Step 6: Final answer
x = 91,117.26
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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.