Finding the Fourth Proportional to 168,113.80, 252,170.70 and 89,381.80
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Solution
The fourth proportional to 168,113.80, 252,170.70 and 89,381.80 is: 134,072.70
Step by Step Solution
- Step 1: Write the proportion equation
168,113.80 : 252,170.70 = 89,381.80 : x - Step 2: Convert to fraction form
168,113.80/252,170.70 = 89,381.80/x - Step 3: Cross multiply
168,113.80x = 252,170.70 × 89,381.80 - Step 4: Simplify right side
168,113.80x = 22,539,471,073.26 - Step 5: Solve for x
x = 22,539,471,073.26/168,113.80 - Step 6: Final answer
x = 134,072.70
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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.