Finding the Fourth Proportional to 142,209.36, 212,686.61 and 126,524.48
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Solution
The fourth proportional to 142,209.36, 212,686.61 and 126,524.48 is: 189,228.48
Step by Step Solution
- Step 1: Write the proportion equation
142,209.36 : 212,686.61 = 126,524.48 : x - Step 2: Convert to fraction form
142,209.36/212,686.61 = 126,524.48/x - Step 3: Cross multiply
142,209.36x = 212,686.61 × 126,524.48 - Step 4: Simplify right side
142,209.36x = 26,910,061,037.16 - Step 5: Solve for x
x = 26,910,061,037.16/142,209.36 - Step 6: Final answer
x = 189,228.48
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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.