Finding the Fourth Proportional to 110,632.70, 152,633.76 and 65,287.99
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Solution
The fourth proportional to 110,632.70, 152,633.76 and 65,287.99 is: 90,074.20
Step by Step Solution
- Step 1: Write the proportion equation
110,632.70 : 152,633.76 = 65,287.99 : x - Step 2: Convert to fraction form
110,632.70/152,633.76 = 65,287.99/x - Step 3: Cross multiply
110,632.70x = 152,633.76 × 65,287.99 - Step 4: Simplify right side
110,632.70x = 9,965,151,396.54 - Step 5: Solve for x
x = 9,965,151,396.54/110,632.70 - Step 6: Final answer
x = 90,074.20
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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.