Finding the Fourth Proportional to 145,976.96, 201,453.18 and 84,718.44
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Solution
The fourth proportional to 145,976.96, 201,453.18 and 84,718.44 is: 116,914.33
Step by Step Solution
- Step 1: Write the proportion equation
145,976.96 : 201,453.18 = 84,718.44 : x - Step 2: Convert to fraction form
145,976.96/201,453.18 = 84,718.44/x - Step 3: Cross multiply
145,976.96x = 201,453.18 × 84,718.44 - Step 4: Simplify right side
145,976.96x = 17,066,799,142.64 - Step 5: Solve for x
x = 17,066,799,142.64/145,976.96 - Step 6: Final answer
x = 116,914.33
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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.