Finding the Fourth Proportional to 151,772.97, 209,474.12 and 90,523.09
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Solution
The fourth proportional to 151,772.97, 209,474.12 and 90,523.09 is: 124,938.21
Step by Step Solution
- Step 1: Write the proportion equation
151,772.97 : 209,474.12 = 90,523.09 : x - Step 2: Convert to fraction form
151,772.97/209,474.12 = 90,523.09/x - Step 3: Cross multiply
151,772.97x = 209,474.12 × 90,523.09 - Step 4: Simplify right side
151,772.97x = 18,962,243,117.44 - Step 5: Solve for x
x = 18,962,243,117.44/151,772.97 - Step 6: Final answer
x = 124,938.21
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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.