Finding the Fourth Proportional to 145,993.92, 201,471.84 and 82,331.52
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Solution
The fourth proportional to 145,993.92, 201,471.84 and 82,331.52 is: 113,617.63
Step by Step Solution
- Step 1: Write the proportion equation
145,993.92 : 201,471.84 = 82,331.52 : x - Step 2: Convert to fraction form
145,993.92/201,471.84 = 82,331.52/x - Step 3: Cross multiply
145,993.92x = 201,471.84 × 82,331.52 - Step 4: Simplify right side
145,993.92x = 16,587,482,824.40 - Step 5: Solve for x
x = 16,587,482,824.40/145,993.92 - Step 6: Final answer
x = 113,617.63
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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.