Finding the Fourth Proportional to 168,432.74, 232,431.09 and 92,979.62
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Solution
The fourth proportional to 168,432.74, 232,431.09 and 92,979.62 is: 128,308.51
Step by Step Solution
- Step 1: Write the proportion equation
168,432.74 : 232,431.09 = 92,979.62 : x - Step 2: Convert to fraction form
168,432.74/232,431.09 = 92,979.62/x - Step 3: Cross multiply
168,432.74x = 232,431.09 × 92,979.62 - Step 4: Simplify right side
168,432.74x = 21,611,354,424.39 - Step 5: Solve for x
x = 21,611,354,424.39/168,432.74 - Step 6: Final answer
x = 128,308.51
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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.