Finding the Fourth Proportional to 135,357.80, 203,036.70 and 82,869.80
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Solution
The fourth proportional to 135,357.80, 203,036.70 and 82,869.80 is: 124,304.70
Step by Step Solution
- Step 1: Write the proportion equation
135,357.80 : 203,036.70 = 82,869.80 : x - Step 2: Convert to fraction form
135,357.80/203,036.70 = 82,869.80/x - Step 3: Cross multiply
135,357.80x = 203,036.70 × 82,869.80 - Step 4: Simplify right side
135,357.80x = 16,825,610,721.66 - Step 5: Solve for x
x = 16,825,610,721.66/135,357.80 - Step 6: Final answer
x = 124,304.70
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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.