Finding the Fourth Proportional to 126,611.44, 189,829.68 and 55,499.92
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Solution
The fourth proportional to 126,611.44, 189,829.68 and 55,499.92 is: 83,211.53
Step by Step Solution
- Step 1: Write the proportion equation
126,611.44 : 189,829.68 = 55,499.92 : x - Step 2: Convert to fraction form
126,611.44/189,829.68 = 55,499.92/x - Step 3: Cross multiply
126,611.44x = 189,829.68 × 55,499.92 - Step 4: Simplify right side
126,611.44x = 10,535,532,053.63 - Step 5: Solve for x
x = 10,535,532,053.63/126,611.44 - Step 6: Final answer
x = 83,211.53
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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.