Finding the Fourth Proportional to 145,450.16, 200,745.09 and 85,008.99
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Solution
The fourth proportional to 145,450.16, 200,745.09 and 85,008.99 is: 117,326.36
Step by Step Solution
- Step 1: Write the proportion equation
145,450.16 : 200,745.09 = 85,008.99 : x - Step 2: Convert to fraction form
145,450.16/200,745.09 = 85,008.99/x - Step 3: Cross multiply
145,450.16x = 200,745.09 × 85,008.99 - Step 4: Simplify right side
145,450.16x = 17,065,137,348.36 - Step 5: Solve for x
x = 17,065,137,348.36/145,450.16 - Step 6: Final answer
x = 117,326.36
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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.