Finding the Fourth Proportional to 110,922.75, 153,129.78 and 68,505.84
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Solution
The fourth proportional to 110,922.75, 153,129.78 and 68,505.84 is: 94,572.88
Step by Step Solution
- Step 1: Write the proportion equation
110,922.75 : 153,129.78 = 68,505.84 : x - Step 2: Convert to fraction form
110,922.75/153,129.78 = 68,505.84/x - Step 3: Cross multiply
110,922.75x = 153,129.78 × 68,505.84 - Step 4: Simplify right side
110,922.75x = 10,490,284,207.92 - Step 5: Solve for x
x = 10,490,284,207.92/110,922.75 - Step 6: Final answer
x = 94,572.88
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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.