Finding the Fourth Proportional to 129,206.66, 193,557.26 and 84,697.58
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Solution
The fourth proportional to 129,206.66, 193,557.26 and 84,697.58 is: 126,880.70
Step by Step Solution
- Step 1: Write the proportion equation
129,206.66 : 193,557.26 = 84,697.58 : x - Step 2: Convert to fraction form
129,206.66/193,557.26 = 84,697.58/x - Step 3: Cross multiply
129,206.66x = 193,557.26 × 84,697.58 - Step 4: Simplify right side
129,206.66x = 16,393,831,513.43 - Step 5: Solve for x
x = 16,393,831,513.43/129,206.66 - Step 6: Final answer
x = 126,880.70
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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.