Finding the Fourth Proportional to 121,472.56, 167,634.66 and 67,759.84
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Solution
The fourth proportional to 121,472.56, 167,634.66 and 67,759.84 is: 93,509.99
Step by Step Solution
- Step 1: Write the proportion equation
121,472.56 : 167,634.66 = 67,759.84 : x - Step 2: Convert to fraction form
121,472.56/167,634.66 = 67,759.84/x - Step 3: Cross multiply
121,472.56x = 167,634.66 × 67,759.84 - Step 4: Simplify right side
121,472.56x = 11,358,897,740.05 - Step 5: Solve for x
x = 11,358,897,740.05/121,472.56 - Step 6: Final answer
x = 93,509.99
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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.