Finding the Fourth Proportional to 121,270.31, 166,141.12 and 116,724.98
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Solution
The fourth proportional to 121,270.31, 166,141.12 and 116,724.98 is: 159,913.99
Step by Step Solution
- Step 1: Write the proportion equation
121,270.31 : 166,141.12 = 116,724.98 : x - Step 2: Convert to fraction form
121,270.31/166,141.12 = 116,724.98/x - Step 3: Cross multiply
121,270.31x = 166,141.12 × 116,724.98 - Step 4: Simplify right side
121,270.31x = 19,392,817,786.66 - Step 5: Solve for x
x = 19,392,817,786.66/121,270.31 - Step 6: Final answer
x = 159,913.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.