Finding the Fourth Proportional to 125,809.19, 173,616.68 and 69,220.56
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Solution
The fourth proportional to 125,809.19, 173,616.68 and 69,220.56 is: 95,524.37
Step by Step Solution
- Step 1: Write the proportion equation
125,809.19 : 173,616.68 = 69,220.56 : x - Step 2: Convert to fraction form
125,809.19/173,616.68 = 69,220.56/x - Step 3: Cross multiply
125,809.19x = 173,616.68 × 69,220.56 - Step 4: Simplify right side
125,809.19x = 12,017,843,814.94 - Step 5: Solve for x
x = 12,017,843,814.94/125,809.19 - Step 6: Final answer
x = 95,524.37
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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.