Finding the Fourth Proportional to 119,575.09, 165,021.12 and 65,860.09
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Solution
The fourth proportional to 119,575.09, 165,021.12 and 65,860.09 is: 90,891.05
Step by Step Solution
- Step 1: Write the proportion equation
119,575.09 : 165,021.12 = 65,860.09 : x - Step 2: Convert to fraction form
119,575.09/165,021.12 = 65,860.09/x - Step 3: Cross multiply
119,575.09x = 165,021.12 × 65,860.09 - Step 4: Simplify right side
119,575.09x = 10,868,305,815.10 - Step 5: Solve for x
x = 10,868,305,815.10/119,575.09 - Step 6: Final answer
x = 90,891.05
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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.