Finding the Fourth Proportional to 117,680.68, 162,399.63 and 63,965.62
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Solution
The fourth proportional to 117,680.68, 162,399.63 and 63,965.62 is: 88,272.71
Step by Step Solution
- Step 1: Write the proportion equation
117,680.68 : 162,399.63 = 63,965.62 : x - Step 2: Convert to fraction form
117,680.68/162,399.63 = 63,965.62/x - Step 3: Cross multiply
117,680.68x = 162,399.63 × 63,965.62 - Step 4: Simplify right side
117,680.68x = 10,387,993,020.72 - Step 5: Solve for x
x = 10,387,993,020.72/117,680.68 - Step 6: Final answer
x = 88,272.71
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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.