Finding the Fourth Proportional to 168,459.42, 232,474.49 and 91,979.17
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Solution
The fourth proportional to 168,459.42, 232,474.49 and 91,979.17 is: 126,931.52
Step by Step Solution
- Step 1: Write the proportion equation
168,459.42 : 232,474.49 = 91,979.17 : x - Step 2: Convert to fraction form
168,459.42/232,474.49 = 91,979.17/x - Step 3: Cross multiply
168,459.42x = 232,474.49 × 91,979.17 - Step 4: Simplify right side
168,459.42x = 21,382,810,636.37 - Step 5: Solve for x
x = 21,382,810,636.37/168,459.42 - Step 6: Final answer
x = 126,931.52
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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.