Finding the Fourth Proportional to 129,946.88, 194,998.08 and 56,074.88
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Solution
The fourth proportional to 129,946.88, 194,998.08 and 56,074.88 is: 84,145.88
Step by Step Solution
- Step 1: Write the proportion equation
129,946.88 : 194,998.08 = 56,074.88 : x - Step 2: Convert to fraction form
129,946.88/194,998.08 = 56,074.88/x - Step 3: Cross multiply
129,946.88x = 194,998.08 × 56,074.88 - Step 4: Simplify right side
129,946.88x = 10,934,493,936.23 - Step 5: Solve for x
x = 10,934,493,936.23/129,946.88 - Step 6: Final answer
x = 84,145.88
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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.