Finding the Fourth Proportional to 122,625.80, 169,284.84 and 80,249.06
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Solution
The fourth proportional to 122,625.80, 169,284.84 and 80,249.06 is: 110,783.78
Step by Step Solution
- Step 1: Write the proportion equation
122,625.80 : 169,284.84 = 80,249.06 : x - Step 2: Convert to fraction form
122,625.80/169,284.84 = 80,249.06/x - Step 3: Cross multiply
122,625.80x = 169,284.84 × 80,249.06 - Step 4: Simplify right side
122,625.80x = 13,584,949,282.25 - Step 5: Solve for x
x = 13,584,949,282.25/122,625.80 - Step 6: Final answer
x = 110,783.78
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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.