Finding the Fourth Proportional to 126,575.40, 189,911.70 and 124,582.80
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Solution
The fourth proportional to 126,575.40, 189,911.70 and 124,582.80 is: 186,922.03
Step by Step Solution
- Step 1: Write the proportion equation
126,575.40 : 189,911.70 = 124,582.80 : x - Step 2: Convert to fraction form
126,575.40/189,911.70 = 124,582.80/x - Step 3: Cross multiply
126,575.40x = 189,911.70 × 124,582.80 - Step 4: Simplify right side
126,575.40x = 23,659,731,338.76 - Step 5: Solve for x
x = 23,659,731,338.76/126,575.40 - Step 6: Final answer
x = 186,922.03
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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.