Finding the Fourth Proportional to 177,765.12, 245,318.49 and 120,421.98
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Solution
The fourth proportional to 177,765.12, 245,318.49 and 120,421.98 is: 166,184.11
Step by Step Solution
- Step 1: Write the proportion equation
177,765.12 : 245,318.49 = 120,421.98 : x - Step 2: Convert to fraction form
177,765.12/245,318.49 = 120,421.98/x - Step 3: Cross multiply
177,765.12x = 245,318.49 × 120,421.98 - Step 4: Simplify right side
177,765.12x = 29,541,738,296.41 - Step 5: Solve for x
x = 29,541,738,296.41/177,765.12 - Step 6: Final answer
x = 166,184.11
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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.