Finding the Fourth Proportional to 146,138.96, 201,151.68 and 103,623.68
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Solution
The fourth proportional to 146,138.96, 201,151.68 and 103,623.68 is: 142,631.90
Step by Step Solution
- Step 1: Write the proportion equation
146,138.96 : 201,151.68 = 103,623.68 : x - Step 2: Convert to fraction form
146,138.96/201,151.68 = 103,623.68/x - Step 3: Cross multiply
146,138.96x = 201,151.68 × 103,623.68 - Step 4: Simplify right side
146,138.96x = 20,844,077,319.78 - Step 5: Solve for x
x = 20,844,077,319.78/146,138.96 - Step 6: Final answer
x = 142,631.90
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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.