Finding the Fourth Proportional to 121,027.20, 181,611.84 and 50,901.12
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Solution
The fourth proportional to 121,027.20, 181,611.84 and 50,901.12 is: 76,381.56
Step by Step Solution
- Step 1: Write the proportion equation
121,027.20 : 181,611.84 = 50,901.12 : x - Step 2: Convert to fraction form
121,027.20/181,611.84 = 50,901.12/x - Step 3: Cross multiply
121,027.20x = 181,611.84 × 50,901.12 - Step 4: Simplify right side
121,027.20x = 9,244,246,061.26 - Step 5: Solve for x
x = 9,244,246,061.26/121,027.20 - Step 6: Final answer
x = 76,381.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.