Finding the Fourth Proportional to 125,722.42, 173,489.70 and 69,133.84
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Solution
The fourth proportional to 125,722.42, 173,489.70 and 69,133.84 is: 95,400.72
Step by Step Solution
- Step 1: Write the proportion equation
125,722.42 : 173,489.70 = 69,133.84 : x - Step 2: Convert to fraction form
125,722.42/173,489.70 = 69,133.84/x - Step 3: Cross multiply
125,722.42x = 173,489.70 × 69,133.84 - Step 4: Simplify right side
125,722.42x = 11,994,009,161.45 - Step 5: Solve for x
x = 11,994,009,161.45/125,722.42 - Step 6: Final answer
x = 95,400.72
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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.