Finding the Fourth Proportional to 129,089.14, 193,709.50 and 54,203.53
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Solution
The fourth proportional to 129,089.14, 193,709.50 and 54,203.53 is: 81,337.12
Step by Step Solution
- Step 1: Write the proportion equation
129,089.14 : 193,709.50 = 54,203.53 : x - Step 2: Convert to fraction form
129,089.14/193,709.50 = 54,203.53/x - Step 3: Cross multiply
129,089.14x = 193,709.50 × 54,203.53 - Step 4: Simplify right side
129,089.14x = 10,499,738,694.54 - Step 5: Solve for x
x = 10,499,738,694.54/129,089.14 - Step 6: Final answer
x = 81,337.12
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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.