Finding the Fourth Proportional to 158,353.24, 218,528.10 and 86,732.68
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Solution
The fourth proportional to 158,353.24, 218,528.10 and 86,732.68 is: 119,691.44
Step by Step Solution
- Step 1: Write the proportion equation
158,353.24 : 218,528.10 = 86,732.68 : x - Step 2: Convert to fraction form
158,353.24/218,528.10 = 86,732.68/x - Step 3: Cross multiply
158,353.24x = 218,528.10 × 86,732.68 - Step 4: Simplify right side
158,353.24x = 18,953,527,768.31 - Step 5: Solve for x
x = 18,953,527,768.31/158,353.24 - Step 6: Final answer
x = 119,691.44
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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.