Finding the Fourth Proportional to 158,193.68, 218,313.78 and 86,579.96
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Solution
The fourth proportional to 158,193.68, 218,313.78 and 86,579.96 is: 119,483.90
Step by Step Solution
- Step 1: Write the proportion equation
158,193.68 : 218,313.78 = 86,579.96 : x - Step 2: Convert to fraction form
158,193.68/218,313.78 = 86,579.96/x - Step 3: Cross multiply
158,193.68x = 218,313.78 × 86,579.96 - Step 4: Simplify right side
158,193.68x = 18,901,598,339.85 - Step 5: Solve for x
x = 18,901,598,339.85/158,193.68 - Step 6: Final answer
x = 119,483.90
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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.