Finding the Fourth Proportional to 156,091.07, 215,405.65 and 84,471.09
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Solution
The fourth proportional to 156,091.07, 215,405.65 and 84,471.09 is: 116,570.09
Step by Step Solution
- Step 1: Write the proportion equation
156,091.07 : 215,405.65 = 84,471.09 : x - Step 2: Convert to fraction form
156,091.07/215,405.65 = 84,471.09/x - Step 3: Cross multiply
156,091.07x = 215,405.65 × 84,471.09 - Step 4: Simplify right side
156,091.07x = 18,195,550,047.66 - Step 5: Solve for x
x = 18,195,550,047.66/156,091.07 - Step 6: Final answer
x = 116,570.09
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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.