Finding the Fourth Proportional to 135,037.10, 202,166.85 and 121,040.30
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Solution
The fourth proportional to 135,037.10, 202,166.85 and 121,040.30 is: 181,211.95
Step by Step Solution
- Step 1: Write the proportion equation
135,037.10 : 202,166.85 = 121,040.30 : x - Step 2: Convert to fraction form
135,037.10/202,166.85 = 121,040.30/x - Step 3: Cross multiply
135,037.10x = 202,166.85 × 121,040.30 - Step 4: Simplify right side
135,037.10x = 24,470,336,174.06 - Step 5: Solve for x
x = 24,470,336,174.06/135,037.10 - Step 6: Final answer
x = 181,211.95
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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.