Finding the Fourth Proportional to 156,212.84, 215,573.83 and 84,592.94
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Solution
The fourth proportional to 156,212.84, 215,573.83 and 84,592.94 is: 116,738.31
Step by Step Solution
- Step 1: Write the proportion equation
156,212.84 : 215,573.83 = 84,592.94 : x - Step 2: Convert to fraction form
156,212.84/215,573.83 = 84,592.94/x - Step 3: Cross multiply
156,212.84x = 215,573.83 × 84,592.94 - Step 4: Simplify right side
156,212.84x = 18,236,022,777.41 - Step 5: Solve for x
x = 18,236,022,777.41/156,212.84 - Step 6: Final answer
x = 116,738.31
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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.