Finding the Fourth Proportional to 126,355.91, 189,699.36 and 84,504.94
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Solution
The fourth proportional to 126,355.91, 189,699.36 and 84,504.94 is: 126,868.08
Step by Step Solution
- Step 1: Write the proportion equation
126,355.91 : 189,699.36 = 84,504.94 : x - Step 2: Convert to fraction form
126,355.91/189,699.36 = 84,504.94/x - Step 3: Cross multiply
126,355.91x = 189,699.36 × 84,504.94 - Step 4: Simplify right side
126,355.91x = 16,030,532,560.59 - Step 5: Solve for x
x = 16,030,532,560.59/126,355.91 - Step 6: Final answer
x = 126,868.08
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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.