Finding the Fourth Proportional to 145,114.26, 200,246.68 and 81,439.75
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Solution
The fourth proportional to 145,114.26, 200,246.68 and 81,439.75 is: 112,380.68
Step by Step Solution
- Step 1: Write the proportion equation
145,114.26 : 200,246.68 = 81,439.75 : x - Step 2: Convert to fraction form
145,114.26/200,246.68 = 81,439.75/x - Step 3: Cross multiply
145,114.26x = 200,246.68 × 81,439.75 - Step 4: Simplify right side
145,114.26x = 16,308,039,557.53 - Step 5: Solve for x
x = 16,308,039,557.53/145,114.26 - Step 6: Final answer
x = 112,380.68
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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.