Finding the Fourth Proportional to 145,579.76, 200,896.14 and 81,048.99
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Solution
The fourth proportional to 145,579.76, 200,896.14 and 81,048.99 is: 111,845.42
Step by Step Solution
- Step 1: Write the proportion equation
145,579.76 : 200,896.14 = 81,048.99 : x - Step 2: Convert to fraction form
145,579.76/200,896.14 = 81,048.99/x - Step 3: Cross multiply
145,579.76x = 200,896.14 × 81,048.99 - Step 4: Simplify right side
145,579.76x = 16,282,429,241.90 - Step 5: Solve for x
x = 16,282,429,241.90/145,579.76 - Step 6: Final answer
x = 111,845.42
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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.