Finding the Fourth Proportional to 117,014.19, 161,480.37 and 71,692.26
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Solution
The fourth proportional to 117,014.19, 161,480.37 and 71,692.26 is: 98,935.80
Step by Step Solution
- Step 1: Write the proportion equation
117,014.19 : 161,480.37 = 71,692.26 : x - Step 2: Convert to fraction form
117,014.19/161,480.37 = 71,692.26/x - Step 3: Cross multiply
117,014.19x = 161,480.37 × 71,692.26 - Step 4: Simplify right side
117,014.19x = 11,576,892,670.94 - Step 5: Solve for x
x = 11,576,892,670.94/117,014.19 - Step 6: Final answer
x = 98,935.80
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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.