Finding the Fourth Proportional to 144,451.62, 199,421.60 and 87,101.19
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Solution
The fourth proportional to 144,451.62, 199,421.60 and 87,101.19 is: 120,246.89
Step by Step Solution
- Step 1: Write the proportion equation
144,451.62 : 199,421.60 = 87,101.19 : x - Step 2: Convert to fraction form
144,451.62/199,421.60 = 87,101.19/x - Step 3: Cross multiply
144,451.62x = 199,421.60 × 87,101.19 - Step 4: Simplify right side
144,451.62x = 17,369,858,236.20 - Step 5: Solve for x
x = 17,369,858,236.20/144,451.62 - Step 6: Final answer
x = 120,246.89
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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.