Finding the Fourth Proportional to 166,912.86, 230,340.87 and 91,464.06
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Solution
The fourth proportional to 166,912.86, 230,340.87 and 91,464.06 is: 126,221.02
Step by Step Solution
- Step 1: Write the proportion equation
166,912.86 : 230,340.87 = 91,464.06 : x - Step 2: Convert to fraction form
166,912.86/230,340.87 = 91,464.06/x - Step 3: Cross multiply
166,912.86x = 230,340.87 × 91,464.06 - Step 4: Simplify right side
166,912.86x = 21,067,911,154.13 - Step 5: Solve for x
x = 21,067,911,154.13/166,912.86 - Step 6: Final answer
x = 126,221.02
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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.