Finding the Fourth Proportional to 197,122.14, 272,028.66 and 106,478.11
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Solution
The fourth proportional to 197,122.14, 272,028.66 and 106,478.11 is: 146,939.84
Step by Step Solution
- Step 1: Write the proportion equation
197,122.14 : 272,028.66 = 106,478.11 : x - Step 2: Convert to fraction form
197,122.14/272,028.66 = 106,478.11/x - Step 3: Cross multiply
197,122.14x = 272,028.66 × 106,478.11 - Step 4: Simplify right side
197,122.14x = 28,965,096,222.49 - Step 5: Solve for x
x = 28,965,096,222.49/197,122.14 - Step 6: Final answer
x = 146,939.84
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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.