Finding the Fourth Proportional to 117,207.12, 161,745.30 and 63,492.30
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Solution
The fourth proportional to 117,207.12, 161,745.30 and 63,492.30 is: 87,619.09
Step by Step Solution
- Step 1: Write the proportion equation
117,207.12 : 161,745.30 = 63,492.30 : x - Step 2: Convert to fraction form
117,207.12/161,745.30 = 63,492.30/x - Step 3: Cross multiply
117,207.12x = 161,745.30 × 63,492.30 - Step 4: Simplify right side
117,207.12x = 10,269,581,111.19 - Step 5: Solve for x
x = 10,269,581,111.19/117,207.12 - Step 6: Final answer
x = 87,619.09
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1.5x scale
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.