Finding the Fourth Proportional to 168,431.13, 232,434.41 and 92,979.09
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Solution
The fourth proportional to 168,431.13, 232,434.41 and 92,979.09 is: 128,310.84
Step by Step Solution
- Step 1: Write the proportion equation
168,431.13 : 232,434.41 = 92,979.09 : x - Step 2: Convert to fraction form
168,431.13/232,434.41 = 92,979.09/x - Step 3: Cross multiply
168,431.13x = 232,434.41 × 92,979.09 - Step 4: Simplify right side
168,431.13x = 21,611,539,461.59 - Step 5: Solve for x
x = 21,611,539,461.59/168,431.13 - Step 6: Final answer
x = 128,310.84
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1.5x scale
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.