Finding the Fourth Proportional to 166,439.74, 229,807.11 and 102,864.70
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Solution
The fourth proportional to 166,439.74, 229,807.11 and 102,864.70 is: 142,027.62
Step by Step Solution
- Step 1: Write the proportion equation
166,439.74 : 229,807.11 = 102,864.70 : x - Step 2: Convert to fraction form
166,439.74/229,807.11 = 102,864.70/x - Step 3: Cross multiply
166,439.74x = 229,807.11 × 102,864.70 - Step 4: Simplify right side
166,439.74x = 23,639,039,428.02 - Step 5: Solve for x
x = 23,639,039,428.02/166,439.74 - Step 6: Final answer
x = 142,027.62
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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.