Finding the Fourth Proportional to 117,720.68, 162,450.09 and 64,003.84
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Solution
The fourth proportional to 117,720.68, 162,450.09 and 64,003.84 is: 88,322.88
Step by Step Solution
- Step 1: Write the proportion equation
117,720.68 : 162,450.09 = 64,003.84 : x - Step 2: Convert to fraction form
117,720.68/162,450.09 = 64,003.84/x - Step 3: Cross multiply
117,720.68x = 162,450.09 × 64,003.84 - Step 4: Simplify right side
117,720.68x = 10,397,429,162.22 - Step 5: Solve for x
x = 10,397,429,162.22/117,720.68 - Step 6: Final answer
x = 88,322.88
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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.