Finding the Fourth Proportional to 134,795.70, 202,419.12 and 129,431.88
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Solution
The fourth proportional to 134,795.70, 202,419.12 and 129,431.88 is: 194,364.41
Step by Step Solution
- Step 1: Write the proportion equation
134,795.70 : 202,419.12 = 129,431.88 : x - Step 2: Convert to fraction form
134,795.70/202,419.12 = 129,431.88/x - Step 3: Cross multiply
134,795.70x = 202,419.12 × 129,431.88 - Step 4: Simplify right side
134,795.70x = 26,199,487,249.55 - Step 5: Solve for x
x = 26,199,487,249.55/134,795.70 - Step 6: Final answer
x = 194,364.41
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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.