Finding the Fourth Proportional to 121,905.11, 182,865.88 and 47,025.88
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Solution
The fourth proportional to 121,905.11, 182,865.88 and 47,025.88 is: 70,541.99
Step by Step Solution
- Step 1: Write the proportion equation
121,905.11 : 182,865.88 = 47,025.88 : x - Step 2: Convert to fraction form
121,905.11/182,865.88 = 47,025.88/x - Step 3: Cross multiply
121,905.11x = 182,865.88 × 47,025.88 - Step 4: Simplify right side
121,905.11x = 8,599,428,928.97 - Step 5: Solve for x
x = 8,599,428,928.97/121,905.11 - Step 6: Final answer
x = 70,541.99
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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.