Finding the Fourth Proportional to 126,524.19, 189,599.03 and 55,381.08
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Solution
The fourth proportional to 126,524.19, 189,599.03 and 55,381.08 is: 82,989.66
Step by Step Solution
- Step 1: Write the proportion equation
126,524.19 : 189,599.03 = 55,381.08 : x - Step 2: Convert to fraction form
126,524.19/189,599.03 = 55,381.08/x - Step 3: Cross multiply
126,524.19x = 189,599.03 × 55,381.08 - Step 4: Simplify right side
126,524.19x = 10,500,199,690.12 - Step 5: Solve for x
x = 10,500,199,690.12/126,524.19 - Step 6: Final answer
x = 82,989.66
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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.