Finding the Fourth Proportional to 158,178.96, 218,286.99 and 86,558.99
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Solution
The fourth proportional to 158,178.96, 218,286.99 and 86,558.99 is: 119,451.42
Step by Step Solution
- Step 1: Write the proportion equation
158,178.96 : 218,286.99 = 86,558.99 : x - Step 2: Convert to fraction form
158,178.96/218,286.99 = 86,558.99/x - Step 3: Cross multiply
158,178.96x = 218,286.99 × 86,558.99 - Step 4: Simplify right side
158,178.96x = 18,894,701,384.54 - Step 5: Solve for x
x = 18,894,701,384.54/158,178.96 - Step 6: Final answer
x = 119,451.42
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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.