Finding the Fourth Proportional to 117,204.36, 161,742.36 and 63,489.24
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Solution
The fourth proportional to 117,204.36, 161,742.36 and 63,489.24 is: 87,615.34
Step by Step Solution
- Step 1: Write the proportion equation
117,204.36 : 161,742.36 = 63,489.24 : x - Step 2: Convert to fraction form
117,204.36/161,742.36 = 63,489.24/x - Step 3: Cross multiply
117,204.36x = 161,742.36 × 63,489.24 - Step 4: Simplify right side
117,204.36x = 10,268,899,512.21 - Step 5: Solve for x
x = 10,268,899,512.21/117,204.36 - Step 6: Final answer
x = 87,615.34
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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.