Finding the Fourth Proportional to 156,453.46, 215,943.12 and 92,828.14
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Solution
The fourth proportional to 156,453.46, 215,943.12 and 92,828.14 is: 128,124.99
Step by Step Solution
- Step 1: Write the proportion equation
156,453.46 : 215,943.12 = 92,828.14 : x - Step 2: Convert to fraction form
156,453.46/215,943.12 = 92,828.14/x - Step 3: Cross multiply
156,453.46x = 215,943.12 × 92,828.14 - Step 4: Simplify right side
156,453.46x = 20,045,598,175.40 - Step 5: Solve for x
x = 20,045,598,175.40/156,453.46 - Step 6: Final answer
x = 128,124.99
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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.