Finding the Fourth Proportional to 117,115.26, 161,618.88 and 63,400.26
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Solution
The fourth proportional to 117,115.26, 161,618.88 and 63,400.26 is: 87,492.26
Step by Step Solution
- Step 1: Write the proportion equation
117,115.26 : 161,618.88 = 63,400.26 : x - Step 2: Convert to fraction form
117,115.26/161,618.88 = 63,400.26/x - Step 3: Cross multiply
117,115.26x = 161,618.88 × 63,400.26 - Step 4: Simplify right side
117,115.26x = 10,246,679,012.91 - Step 5: Solve for x
x = 10,246,679,012.91/117,115.26 - Step 6: Final answer
x = 87,492.26
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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.