Finding the Fourth Proportional to 135,434.93, 203,349.23 and 100,005.53
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Solution
The fourth proportional to 135,434.93, 203,349.23 and 100,005.53 is: 150,153.63
Step by Step Solution
- Step 1: Write the proportion equation
135,434.93 : 203,349.23 = 100,005.53 : x - Step 2: Convert to fraction form
135,434.93/203,349.23 = 100,005.53/x - Step 3: Cross multiply
135,434.93x = 203,349.23 × 100,005.53 - Step 4: Simplify right side
135,434.93x = 20,336,047,021.21 - Step 5: Solve for x
x = 20,336,047,021.21/135,434.93 - Step 6: Final answer
x = 150,153.63
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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.