Finding the Fourth Proportional to 168,027.44, 231,991.80 and 117,638.96
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Solution
The fourth proportional to 168,027.44, 231,991.80 and 117,638.96 is: 162,421.53
Step by Step Solution
- Step 1: Write the proportion equation
168,027.44 : 231,991.80 = 117,638.96 : x - Step 2: Convert to fraction form
168,027.44/231,991.80 = 117,638.96/x - Step 3: Cross multiply
168,027.44x = 231,991.80 × 117,638.96 - Step 4: Simplify right side
168,027.44x = 27,291,274,080.53 - Step 5: Solve for x
x = 27,291,274,080.53/168,027.44 - Step 6: Final answer
x = 162,421.53
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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.