Finding the Fourth Proportional to 158,582.40, 218,850.02 and 86,964.99
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Solution
The fourth proportional to 158,582.40, 218,850.02 and 86,964.99 is: 120,015.15
Step by Step Solution
- Step 1: Write the proportion equation
158,582.40 : 218,850.02 = 86,964.99 : x - Step 2: Convert to fraction form
158,582.40/218,850.02 = 86,964.99/x - Step 3: Cross multiply
158,582.40x = 218,850.02 × 86,964.99 - Step 4: Simplify right side
158,582.40x = 19,032,289,800.80 - Step 5: Solve for x
x = 19,032,289,800.80/158,582.40 - Step 6: Final answer
x = 120,015.15
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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.