Finding the Fourth Proportional to 155,938.92, 215,194.74 and 84,319.08
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Solution
The fourth proportional to 155,938.92, 215,194.74 and 84,319.08 is: 116,359.81
Step by Step Solution
- Step 1: Write the proportion equation
155,938.92 : 215,194.74 = 84,319.08 : x - Step 2: Convert to fraction form
155,938.92/215,194.74 = 84,319.08/x - Step 3: Cross multiply
155,938.92x = 215,194.74 × 84,319.08 - Step 4: Simplify right side
155,938.92x = 18,145,022,497.64 - Step 5: Solve for x
x = 18,145,022,497.64/155,938.92 - Step 6: Final answer
x = 116,359.81
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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.