Finding the Fourth Proportional to 126,576.14, 189,859.14 and 31,807.08
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Solution
The fourth proportional to 126,576.14, 189,859.14 and 31,807.08 is: 47,709.35
Step by Step Solution
- Step 1: Write the proportion equation
126,576.14 : 189,859.14 = 31,807.08 : x - Step 2: Convert to fraction form
126,576.14/189,859.14 = 31,807.08/x - Step 3: Cross multiply
126,576.14x = 189,859.14 × 31,807.08 - Step 4: Simplify right side
126,576.14x = 6,038,864,854.71 - Step 5: Solve for x
x = 6,038,864,854.71/126,576.14 - Step 6: Final answer
x = 47,709.35
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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.