Finding the Fourth Proportional to 115,344.93, 159,205.01 and 65,073.09
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Solution
The fourth proportional to 115,344.93, 159,205.01 and 65,073.09 is: 89,817.23
Step by Step Solution
- Step 1: Write the proportion equation
115,344.93 : 159,205.01 = 65,073.09 : x - Step 2: Convert to fraction form
115,344.93/159,205.01 = 65,073.09/x - Step 3: Cross multiply
115,344.93x = 159,205.01 × 65,073.09 - Step 4: Simplify right side
115,344.93x = 10,359,961,618.82 - Step 5: Solve for x
x = 10,359,961,618.82/115,344.93 - Step 6: Final answer
x = 89,817.23
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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.