Finding the Fourth Proportional to 198,626.98, 274,101.96 and 107,985.20
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Solution
The fourth proportional to 198,626.98, 274,101.96 and 107,985.20 is: 149,017.80
Step by Step Solution
- Step 1: Write the proportion equation
198,626.98 : 274,101.96 = 107,985.20 : x - Step 2: Convert to fraction form
198,626.98/274,101.96 = 107,985.20/x - Step 3: Cross multiply
198,626.98x = 274,101.96 × 107,985.20 - Step 4: Simplify right side
198,626.98x = 29,598,954,970.99 - Step 5: Solve for x
x = 29,598,954,970.99/198,626.98 - Step 6: Final answer
x = 149,017.80
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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.