Finding the Fourth Proportional to 126,541.17, 189,806.97 and 31,772.09
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Solution
The fourth proportional to 126,541.17, 189,806.97 and 31,772.09 is: 47,656.93
Step by Step Solution
- Step 1: Write the proportion equation
126,541.17 : 189,806.97 = 31,772.09 : x - Step 2: Convert to fraction form
126,541.17/189,806.97 = 31,772.09/x - Step 3: Cross multiply
126,541.17x = 189,806.97 × 31,772.09 - Step 4: Simplify right side
126,541.17x = 6,030,563,184.43 - Step 5: Solve for x
x = 6,030,563,184.43/126,541.17 - Step 6: Final answer
x = 47,656.93
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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.