Finding the Fourth Proportional to 156,523.36, 215,664.24 and 106,134.88
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Solution
The fourth proportional to 156,523.36, 215,664.24 and 106,134.88 is: 146,236.95
Step by Step Solution
- Step 1: Write the proportion equation
156,523.36 : 215,664.24 = 106,134.88 : x - Step 2: Convert to fraction form
156,523.36/215,664.24 = 106,134.88/x - Step 3: Cross multiply
156,523.36x = 215,664.24 × 106,134.88 - Step 4: Simplify right side
156,523.36x = 22,889,498,232.69 - Step 5: Solve for x
x = 22,889,498,232.69/156,523.36 - Step 6: Final answer
x = 146,236.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.