Finding the Fourth Proportional to 145,662.12, 201,013.20 and 82,000.08
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Solution
The fourth proportional to 145,662.12, 201,013.20 and 82,000.08 is: 113,159.81
Step by Step Solution
- Step 1: Write the proportion equation
145,662.12 : 201,013.20 = 82,000.08 : x - Step 2: Convert to fraction form
145,662.12/201,013.20 = 82,000.08/x - Step 3: Cross multiply
145,662.12x = 201,013.20 × 82,000.08 - Step 4: Simplify right side
145,662.12x = 16,483,098,481.06 - Step 5: Solve for x
x = 16,483,098,481.06/145,662.12 - Step 6: Final answer
x = 113,159.81
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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.