Finding the Fourth Proportional to 99,125.21, 136,793.09 and 53,803.56
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Solution
The fourth proportional to 99,125.21, 136,793.09 and 53,803.56 is: 74,249.08
Step by Step Solution
- Step 1: Write the proportion equation
99,125.21 : 136,793.09 = 53,803.56 : x - Step 2: Convert to fraction form
99,125.21/136,793.09 = 53,803.56/x - Step 3: Cross multiply
99,125.21x = 136,793.09 × 53,803.56 - Step 4: Simplify right side
99,125.21x = 7,359,955,316.31 - Step 5: Solve for x
x = 7,359,955,316.31/99,125.21 - Step 6: Final answer
x = 74,249.08
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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.