Finding the Fourth Proportional to 118,006.80, 177,010.20 and 113,341.20
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Solution
The fourth proportional to 118,006.80, 177,010.20 and 113,341.20 is: 170,011.80
Step by Step Solution
- Step 1: Write the proportion equation
118,006.80 : 177,010.20 = 113,341.20 : x - Step 2: Convert to fraction form
118,006.80/177,010.20 = 113,341.20/x - Step 3: Cross multiply
118,006.80x = 177,010.20 × 113,341.20 - Step 4: Simplify right side
118,006.80x = 20,062,548,480.24 - Step 5: Solve for x
x = 20,062,548,480.24/118,006.80 - Step 6: Final answer
x = 170,011.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.