Finding the Fourth Proportional to 118,125.20, 177,187.80 and 82,695.80
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Solution
The fourth proportional to 118,125.20, 177,187.80 and 82,695.80 is: 124,043.70
Step by Step Solution
- Step 1: Write the proportion equation
118,125.20 : 177,187.80 = 82,695.80 : x - Step 2: Convert to fraction form
118,125.20/177,187.80 = 82,695.80/x - Step 3: Cross multiply
118,125.20x = 177,187.80 × 82,695.80 - Step 4: Simplify right side
118,125.20x = 14,652,686,871.24 - Step 5: Solve for x
x = 14,652,686,871.24/118,125.20 - Step 6: Final answer
x = 124,043.70
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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.