Finding the Fourth Proportional to 151,935.84, 227,943.36 and 85,425.12
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Solution
The fourth proportional to 151,935.84, 227,943.36 and 85,425.12 is: 128,159.94
Step by Step Solution
- Step 1: Write the proportion equation
151,935.84 : 227,943.36 = 85,425.12 : x - Step 2: Convert to fraction form
151,935.84/227,943.36 = 85,425.12/x - Step 3: Cross multiply
151,935.84x = 227,943.36 × 85,425.12 - Step 4: Simplify right side
151,935.84x = 19,472,088,881.20 - Step 5: Solve for x
x = 19,472,088,881.20/151,935.84 - Step 6: Final answer
x = 128,159.94
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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.