Finding the Fourth Proportional to 156,279.08, 215,664.24 and 84,660.48
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Solution
The fourth proportional to 156,279.08, 215,664.24 and 84,660.48 is: 116,830.98
Step by Step Solution
- Step 1: Write the proportion equation
156,279.08 : 215,664.24 = 84,660.48 : x - Step 2: Convert to fraction form
156,279.08/215,664.24 = 84,660.48/x - Step 3: Cross multiply
156,279.08x = 215,664.24 × 84,660.48 - Step 4: Simplify right side
156,279.08x = 18,258,238,077.24 - Step 5: Solve for x
x = 18,258,238,077.24/156,279.08 - Step 6: Final answer
x = 116,830.98
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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.