Finding the Fourth Proportional to 169,869.12, 234,424.97 and 93,391.44
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Solution
The fourth proportional to 169,869.12, 234,424.97 and 93,391.44 is: 128,883.26
Step by Step Solution
- Step 1: Write the proportion equation
169,869.12 : 234,424.97 = 93,391.44 : x - Step 2: Convert to fraction form
169,869.12/234,424.97 = 93,391.44/x - Step 3: Cross multiply
169,869.12x = 234,424.97 × 93,391.44 - Step 4: Simplify right side
169,869.12x = 21,893,285,520.26 - Step 5: Solve for x
x = 21,893,285,520.26/169,869.12 - Step 6: Final answer
x = 128,883.26
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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.