Finding the Fourth Proportional to 120,287.91, 180,431.06 and 94,014.75
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Solution
The fourth proportional to 120,287.91, 180,431.06 and 94,014.75 is: 141,021.49
Step by Step Solution
- Step 1: Write the proportion equation
120,287.91 : 180,431.06 = 94,014.75 : x - Step 2: Convert to fraction form
120,287.91/180,431.06 = 94,014.75/x - Step 3: Cross multiply
120,287.91x = 180,431.06 × 94,014.75 - Step 4: Simplify right side
120,287.91x = 16,963,180,528.06 - Step 5: Solve for x
x = 16,963,180,528.06/120,287.91 - Step 6: Final answer
x = 141,021.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.