Finding the Fourth Proportional to 135,251.80, 203,001.70 and 68,738.20
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Solution
The fourth proportional to 135,251.80, 203,001.70 and 68,738.20 is: 103,170.32
Step by Step Solution
- Step 1: Write the proportion equation
135,251.80 : 203,001.70 = 68,738.20 : x - Step 2: Convert to fraction form
135,251.80/203,001.70 = 68,738.20/x - Step 3: Cross multiply
135,251.80x = 203,001.70 × 68,738.20 - Step 4: Simplify right side
135,251.80x = 13,953,971,454.94 - Step 5: Solve for x
x = 13,953,971,454.94/135,251.80 - Step 6: Final answer
x = 103,170.32
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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.