Finding the Fourth Proportional to 110,660.63, 152,677.05 and 65,354.65
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Solution
The fourth proportional to 110,660.63, 152,677.05 and 65,354.65 is: 90,168.97
Step by Step Solution
- Step 1: Write the proportion equation
110,660.63 : 152,677.05 = 65,354.65 : x - Step 2: Convert to fraction form
110,660.63/152,677.05 = 65,354.65/x - Step 3: Cross multiply
110,660.63x = 152,677.05 × 65,354.65 - Step 4: Simplify right side
110,660.63x = 9,978,154,906.63 - Step 5: Solve for x
x = 9,978,154,906.63/110,660.63 - Step 6: Final answer
x = 90,168.97
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1.5x scale
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.