Finding the Fourth Proportional to 126,362.72, 189,384.88 and 110,530.08
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Solution
The fourth proportional to 126,362.72, 189,384.88 and 110,530.08 is: 165,655.87
Step by Step Solution
- Step 1: Write the proportion equation
126,362.72 : 189,384.88 = 110,530.08 : x - Step 2: Convert to fraction form
126,362.72/189,384.88 = 110,530.08/x - Step 3: Cross multiply
126,362.72x = 189,384.88 × 110,530.08 - Step 4: Simplify right side
126,362.72x = 20,932,725,937.19 - Step 5: Solve for x
x = 20,932,725,937.19/126,362.72 - Step 6: Final answer
x = 165,655.87
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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.