Finding the Fourth Proportional to 117,064.97, 161,563.96 and 71,749.41
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Solution
The fourth proportional to 117,064.97, 161,563.96 and 71,749.41 is: 99,022.95
Step by Step Solution
- Step 1: Write the proportion equation
117,064.97 : 161,563.96 = 71,749.41 : x - Step 2: Convert to fraction form
117,064.97/161,563.96 = 71,749.41/x - Step 3: Cross multiply
117,064.97x = 161,563.96 × 71,749.41 - Step 4: Simplify right side
117,064.97x = 11,592,118,807.26 - Step 5: Solve for x
x = 11,592,118,807.26/117,064.97 - Step 6: Final answer
x = 99,022.95
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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.