Finding the Fourth Proportional to 117,207.18, 161,745.76 and 63,492.41
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Solution
The fourth proportional to 117,207.18, 161,745.76 and 63,492.41 is: 87,619.45
Step by Step Solution
- Step 1: Write the proportion equation
117,207.18 : 161,745.76 = 63,492.41 : x - Step 2: Convert to fraction form
117,207.18/161,745.76 = 63,492.41/x - Step 3: Cross multiply
117,207.18x = 161,745.76 × 63,492.41 - Step 4: Simplify right side
117,207.18x = 10,269,628,109.68 - Step 5: Solve for x
x = 10,269,628,109.68/117,207.18 - Step 6: Final answer
x = 87,619.45
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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.