Finding the Fourth Proportional to 126,307.92, 189,297.77 and 51,340.75
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Solution
The fourth proportional to 126,307.92, 189,297.77 and 51,340.75 is: 76,944.42
Step by Step Solution
- Step 1: Write the proportion equation
126,307.92 : 189,297.77 = 51,340.75 : x - Step 2: Convert to fraction form
126,307.92/189,297.77 = 51,340.75/x - Step 3: Cross multiply
126,307.92x = 189,297.77 × 51,340.75 - Step 4: Simplify right side
126,307.92x = 9,718,689,140.23 - Step 5: Solve for x
x = 9,718,689,140.23/126,307.92 - Step 6: Final answer
x = 76,944.42
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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.