Finding the Fourth Proportional to 145,982.76, 201,492.90 and 82,357.46
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Solution
The fourth proportional to 145,982.76, 201,492.90 and 82,357.46 is: 113,673.99
Step by Step Solution
- Step 1: Write the proportion equation
145,982.76 : 201,492.90 = 82,357.46 : x - Step 2: Convert to fraction form
145,982.76/201,492.90 = 82,357.46/x - Step 3: Cross multiply
145,982.76x = 201,492.90 × 82,357.46 - Step 4: Simplify right side
145,982.76x = 16,594,443,452.03 - Step 5: Solve for x
x = 16,594,443,452.03/145,982.76 - Step 6: Final answer
x = 113,673.99
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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.