Finding the Fourth Proportional to 121,628.36, 182,500.30 and 84,245.96
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Solution
The fourth proportional to 121,628.36, 182,500.30 and 84,245.96 is: 126,408.95
Step by Step Solution
- Step 1: Write the proportion equation
121,628.36 : 182,500.30 = 84,245.96 : x - Step 2: Convert to fraction form
121,628.36/182,500.30 = 84,245.96/x - Step 3: Cross multiply
121,628.36x = 182,500.30 × 84,245.96 - Step 4: Simplify right side
121,628.36x = 15,374,912,973.79 - Step 5: Solve for x
x = 15,374,912,973.79/121,628.36 - Step 6: Final answer
x = 126,408.95
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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.