Finding the Fourth Proportional to 156,279.23, 215,665.91 and 84,659.08
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Solution
The fourth proportional to 156,279.23, 215,665.91 and 84,659.08 is: 116,829.84
Step by Step Solution
- Step 1: Write the proportion equation
156,279.23 : 215,665.91 = 84,659.08 : x - Step 2: Convert to fraction form
156,279.23/215,665.91 = 84,659.08/x - Step 3: Cross multiply
156,279.23x = 215,665.91 × 84,659.08 - Step 4: Simplify right side
156,279.23x = 18,258,077,527.96 - Step 5: Solve for x
x = 18,258,077,527.96/156,279.23 - Step 6: Final answer
x = 116,829.84
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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.