Finding the Fourth Proportional to 117,194.26, 161,728.23 and 63,479.74
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Solution
The fourth proportional to 117,194.26, 161,728.23 and 63,479.74 is: 87,602.12
Step by Step Solution
- Step 1: Write the proportion equation
117,194.26 : 161,728.23 = 63,479.74 : x - Step 2: Convert to fraction form
117,194.26/161,728.23 = 63,479.74/x - Step 3: Cross multiply
117,194.26x = 161,728.23 × 63,479.74 - Step 4: Simplify right side
117,194.26x = 10,266,465,991.06 - Step 5: Solve for x
x = 10,266,465,991.06/117,194.26 - Step 6: Final answer
x = 87,602.12
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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.