Finding the Fourth Proportional to 154,230.62, 212,836.80 and 86,246.82
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Solution
The fourth proportional to 154,230.62, 212,836.80 and 86,246.82 is: 119,019.79
Step by Step Solution
- Step 1: Write the proportion equation
154,230.62 : 212,836.80 = 86,246.82 : x - Step 2: Convert to fraction form
154,230.62/212,836.80 = 86,246.82/x - Step 3: Cross multiply
154,230.62x = 212,836.80 × 86,246.82 - Step 4: Simplify right side
154,230.62x = 18,356,496,782.51 - Step 5: Solve for x
x = 18,356,496,782.51/154,230.62 - Step 6: Final answer
x = 119,019.79
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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.