Finding the Fourth Proportional to 154,896.16, 213,747.84 and 85,982.08
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Solution
The fourth proportional to 154,896.16, 213,747.84 and 85,982.08 is: 118,650.35
Step by Step Solution
- Step 1: Write the proportion equation
154,896.16 : 213,747.84 = 85,982.08 : x - Step 2: Convert to fraction form
154,896.16/213,747.84 = 85,982.08/x - Step 3: Cross multiply
154,896.16x = 213,747.84 × 85,982.08 - Step 4: Simplify right side
154,896.16x = 18,378,483,878.71 - Step 5: Solve for x
x = 18,378,483,878.71/154,896.16 - Step 6: Final answer
x = 118,650.35
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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.