Finding the Fourth Proportional to 125,989.35, 173,865.30 and 69,400.72
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Solution
The fourth proportional to 125,989.35, 173,865.30 and 69,400.72 is: 95,772.99
Step by Step Solution
- Step 1: Write the proportion equation
125,989.35 : 173,865.30 = 69,400.72 : x - Step 2: Convert to fraction form
125,989.35/173,865.30 = 69,400.72/x - Step 3: Cross multiply
125,989.35x = 173,865.30 × 69,400.72 - Step 4: Simplify right side
125,989.35x = 12,066,377,003.02 - Step 5: Solve for x
x = 12,066,377,003.02/125,989.35 - Step 6: Final answer
x = 95,772.99
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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.