Finding the Fourth Proportional to 147,359.62, 203,380.74 and 86,945.08
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Solution
The fourth proportional to 147,359.62, 203,380.74 and 86,945.08 is: 119,998.64
Step by Step Solution
- Step 1: Write the proportion equation
147,359.62 : 203,380.74 = 86,945.08 : x - Step 2: Convert to fraction form
147,359.62/203,380.74 = 86,945.08/x - Step 3: Cross multiply
147,359.62x = 203,380.74 × 86,945.08 - Step 4: Simplify right side
147,359.62x = 17,682,954,709.76 - Step 5: Solve for x
x = 17,682,954,709.76/147,359.62 - Step 6: Final answer
x = 119,998.64
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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.