Finding the Fourth Proportional to 166,572.99, 229,867.29 and 91,121.49
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Solution
The fourth proportional to 166,572.99, 229,867.29 and 91,121.49 is: 125,745.78
Step by Step Solution
- Step 1: Write the proportion equation
166,572.99 : 229,867.29 = 91,121.49 : x - Step 2: Convert to fraction form
166,572.99/229,867.29 = 91,121.49/x - Step 3: Cross multiply
166,572.99x = 229,867.29 × 91,121.49 - Step 4: Simplify right side
166,572.99x = 20,945,849,967.06 - Step 5: Solve for x
x = 20,945,849,967.06/166,572.99 - Step 6: Final answer
x = 125,745.78
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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.