Finding the Fourth Proportional to 135,036.19, 186,351.90 and 74,608.23
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Solution
The fourth proportional to 135,036.19, 186,351.90 and 74,608.23 is: 102,960.43
Step by Step Solution
- Step 1: Write the proportion equation
135,036.19 : 186,351.90 = 74,608.23 : x - Step 2: Convert to fraction form
135,036.19/186,351.90 = 74,608.23/x - Step 3: Cross multiply
135,036.19x = 186,351.90 × 74,608.23 - Step 4: Simplify right side
135,036.19x = 13,903,384,472.67 - Step 5: Solve for x
x = 13,903,384,472.67/135,036.19 - Step 6: Final answer
x = 102,960.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.