Finding the Fourth Proportional to 121,609.19, 182,261.50 and 65,310.95
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Solution
The fourth proportional to 121,609.19, 182,261.50 and 65,310.95 is: 97,884.64
Step by Step Solution
- Step 1: Write the proportion equation
121,609.19 : 182,261.50 = 65,310.95 : x - Step 2: Convert to fraction form
121,609.19/182,261.50 = 65,310.95/x - Step 3: Cross multiply
121,609.19x = 182,261.50 × 65,310.95 - Step 4: Simplify right side
121,609.19x = 11,903,671,713.43 - Step 5: Solve for x
x = 11,903,671,713.43/121,609.19 - Step 6: Final answer
x = 97,884.64
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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.