Finding the Fourth Proportional to 117,217.31, 161,759.69 and 63,503.69
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Solution
The fourth proportional to 117,217.31, 161,759.69 and 63,503.69 is: 87,634.99
Step by Step Solution
- Step 1: Write the proportion equation
117,217.31 : 161,759.69 = 63,503.69 : x - Step 2: Convert to fraction form
117,217.31/161,759.69 = 63,503.69/x - Step 3: Cross multiply
117,217.31x = 161,759.69 × 63,503.69 - Step 4: Simplify right side
117,217.31x = 10,272,337,208.26 - Step 5: Solve for x
x = 10,272,337,208.26/117,217.31 - Step 6: Final answer
x = 87,634.99
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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.