Finding the Fourth Proportional to 189,793.13, 261,919.98 and 104,915.66
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Solution
The fourth proportional to 189,793.13, 261,919.98 and 104,915.66 is: 144,786.63
Step by Step Solution
- Step 1: Write the proportion equation
189,793.13 : 261,919.98 = 104,915.66 : x - Step 2: Convert to fraction form
189,793.13/261,919.98 = 104,915.66/x - Step 3: Cross multiply
189,793.13x = 261,919.98 × 104,915.66 - Step 4: Simplify right side
189,793.13x = 27,479,506,259.29 - Step 5: Solve for x
x = 27,479,506,259.29/189,793.13 - Step 6: Final answer
x = 144,786.63
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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.