Finding the Fourth Proportional to 131,158.80, 196,936.20 and 104,785.20
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Solution
The fourth proportional to 131,158.80, 196,936.20 and 104,785.20 is: 157,335.99
Step by Step Solution
- Step 1: Write the proportion equation
131,158.80 : 196,936.20 = 104,785.20 : x - Step 2: Convert to fraction form
131,158.80/196,936.20 = 104,785.20/x - Step 3: Cross multiply
131,158.80x = 196,936.20 × 104,785.20 - Step 4: Simplify right side
131,158.80x = 20,635,999,104.24 - Step 5: Solve for x
x = 20,635,999,104.24/131,158.80 - Step 6: Final answer
x = 157,335.99
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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.