Finding the Fourth Proportional to 154,236.59, 212,845.01 and 86,252.79
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Solution
The fourth proportional to 154,236.59, 212,845.01 and 86,252.79 is: 119,028.02
Step by Step Solution
- Step 1: Write the proportion equation
154,236.59 : 212,845.01 = 86,252.79 : x - Step 2: Convert to fraction form
154,236.59/212,845.01 = 86,252.79/x - Step 3: Cross multiply
154,236.59x = 212,845.01 × 86,252.79 - Step 4: Simplify right side
154,236.59x = 18,358,475,518.81 - Step 5: Solve for x
x = 18,358,475,518.81/154,236.59 - Step 6: Final answer
x = 119,028.02
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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.