Finding the Fourth Proportional to 115,323.75, 159,147.99 and 65,022.75
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Solution
The fourth proportional to 115,323.75, 159,147.99 and 65,022.75 is: 89,732.08
Step by Step Solution
- Step 1: Write the proportion equation
115,323.75 : 159,147.99 = 65,022.75 : x - Step 2: Convert to fraction form
115,323.75/159,147.99 = 65,022.75/x - Step 3: Cross multiply
115,323.75x = 159,147.99 × 65,022.75 - Step 4: Simplify right side
115,323.75x = 10,348,239,966.77 - Step 5: Solve for x
x = 10,348,239,966.77/115,323.75 - Step 6: Final answer
x = 89,732.08
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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.