Finding the Fourth Proportional to 122,994.92, 169,674.99 and 71,976.08
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Solution
The fourth proportional to 122,994.92, 169,674.99 and 71,976.08 is: 99,293.05
Step by Step Solution
- Step 1: Write the proportion equation
122,994.92 : 169,674.99 = 71,976.08 : x - Step 2: Convert to fraction form
122,994.92/169,674.99 = 71,976.08/x - Step 3: Cross multiply
122,994.92x = 169,674.99 × 71,976.08 - Step 4: Simplify right side
122,994.92x = 12,212,540,654.24 - Step 5: Solve for x
x = 12,212,540,654.24/122,994.92 - Step 6: Final answer
x = 99,293.05
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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.