Finding the Fourth Proportional to 199,638.12, 275,496.98 and 113,595.23
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Solution
The fourth proportional to 199,638.12, 275,496.98 and 113,595.23 is: 156,759.34
Step by Step Solution
- Step 1: Write the proportion equation
199,638.12 : 275,496.98 = 113,595.23 : x - Step 2: Convert to fraction form
199,638.12/275,496.98 = 113,595.23/x - Step 3: Cross multiply
199,638.12x = 275,496.98 × 113,595.23 - Step 4: Simplify right side
199,638.12x = 31,295,140,861.94 - Step 5: Solve for x
x = 31,295,140,861.94/199,638.12 - Step 6: Final answer
x = 156,759.34
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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.