Finding the Fourth Proportional to 126,312.96, 189,288.84 and 92,769.84
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Solution
The fourth proportional to 126,312.96, 189,288.84 and 92,769.84 is: 139,022.12
Step by Step Solution
- Step 1: Write the proportion equation
126,312.96 : 189,288.84 = 92,769.84 : x - Step 2: Convert to fraction form
126,312.96/189,288.84 = 92,769.84/x - Step 3: Cross multiply
126,312.96x = 189,288.84 × 92,769.84 - Step 4: Simplify right side
126,312.96x = 17,560,295,400.59 - Step 5: Solve for x
x = 17,560,295,400.59/126,312.96 - Step 6: Final answer
x = 139,022.12
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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.