Finding the Fourth Proportional to 146,992.19, 220,416.95 and 86,219.06
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Solution
The fourth proportional to 146,992.19, 220,416.95 and 86,219.06 is: 129,286.75
Step by Step Solution
- Step 1: Write the proportion equation
146,992.19 : 220,416.95 = 86,219.06 : x - Step 2: Convert to fraction form
146,992.19/220,416.95 = 86,219.06/x - Step 3: Cross multiply
146,992.19x = 220,416.95 × 86,219.06 - Step 4: Simplify right side
146,992.19x = 19,004,141,350.53 - Step 5: Solve for x
x = 19,004,141,350.53/146,992.19 - Step 6: Final answer
x = 129,286.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.