Finding the Fourth Proportional to 145,969.40, 201,455.70 and 82,305.92
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Solution
The fourth proportional to 145,969.40, 201,455.70 and 82,305.92 is: 113,592.28
Step by Step Solution
- Step 1: Write the proportion equation
145,969.40 : 201,455.70 = 82,305.92 : x - Step 2: Convert to fraction form
145,969.40/201,455.70 = 82,305.92/x - Step 3: Cross multiply
145,969.40x = 201,455.70 × 82,305.92 - Step 4: Simplify right side
145,969.40x = 16,580,996,727.74 - Step 5: Solve for x
x = 16,580,996,727.74/145,969.40 - Step 6: Final answer
x = 113,592.28
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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.