Finding the Fourth Proportional to 131,404.70, 197,107.05 and 121,267.10
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Solution
The fourth proportional to 131,404.70, 197,107.05 and 121,267.10 is: 181,900.65
Step by Step Solution
- Step 1: Write the proportion equation
131,404.70 : 197,107.05 = 121,267.10 : x - Step 2: Convert to fraction form
131,404.70/197,107.05 = 121,267.10/x - Step 3: Cross multiply
131,404.70x = 197,107.05 × 121,267.10 - Step 4: Simplify right side
131,404.70x = 23,902,600,343.06 - Step 5: Solve for x
x = 23,902,600,343.06/131,404.70 - Step 6: Final answer
x = 181,900.65
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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.