Finding the Fourth Proportional to 121,507.20, 182,260.80 and 106,744.95
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Solution
The fourth proportional to 121,507.20, 182,260.80 and 106,744.95 is: 160,117.43
Step by Step Solution
- Step 1: Write the proportion equation
121,507.20 : 182,260.80 = 106,744.95 : x - Step 2: Convert to fraction form
121,507.20/182,260.80 = 106,744.95/x - Step 3: Cross multiply
121,507.20x = 182,260.80 × 106,744.95 - Step 4: Simplify right side
121,507.20x = 19,455,419,982.96 - Step 5: Solve for x
x = 19,455,419,982.96/121,507.20 - Step 6: Final answer
x = 160,117.43
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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.