Finding the Fourth Proportional to 166,115.14, 229,235.64 and 90,664.18
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Solution
The fourth proportional to 166,115.14, 229,235.64 and 90,664.18 is: 125,114.79
Step by Step Solution
- Step 1: Write the proportion equation
166,115.14 : 229,235.64 = 90,664.18 : x - Step 2: Convert to fraction form
166,115.14/229,235.64 = 90,664.18/x - Step 3: Cross multiply
166,115.14x = 229,235.64 × 90,664.18 - Step 4: Simplify right side
166,115.14x = 20,783,461,327.38 - Step 5: Solve for x
x = 20,783,461,327.38/166,115.14 - Step 6: Final answer
x = 125,114.79
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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.