Finding the Fourth Proportional to 121,281.44, 166,156.18 and 116,736.06
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Solution
The fourth proportional to 121,281.44, 166,156.18 and 116,736.06 is: 159,928.99
Step by Step Solution
- Step 1: Write the proportion equation
121,281.44 : 166,156.18 = 116,736.06 : x - Step 2: Convert to fraction form
121,281.44/166,156.18 = 116,736.06/x - Step 3: Cross multiply
121,281.44x = 166,156.18 × 116,736.06 - Step 4: Simplify right side
121,281.44x = 19,396,417,797.85 - Step 5: Solve for x
x = 19,396,417,797.85/121,281.44 - Step 6: Final answer
x = 159,928.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.