Finding the Fourth Proportional to 135,438.65, 203,356.91 and 133,046.70
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Solution
The fourth proportional to 135,438.65, 203,356.91 and 133,046.70 is: 199,765.48
Step by Step Solution
- Step 1: Write the proportion equation
135,438.65 : 203,356.91 = 133,046.70 : x - Step 2: Convert to fraction form
135,438.65/203,356.91 = 133,046.70/x - Step 3: Cross multiply
135,438.65x = 203,356.91 × 133,046.70 - Step 4: Simplify right side
135,438.65x = 27,055,966,330.21 - Step 5: Solve for x
x = 27,055,966,330.21/135,438.65 - Step 6: Final answer
x = 199,765.48
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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.