Finding the Fourth Proportional to 130,279.08, 179,791.74 and 73,708.68
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Solution
The fourth proportional to 130,279.08, 179,791.74 and 73,708.68 is: 101,721.72
Step by Step Solution
- Step 1: Write the proportion equation
130,279.08 : 179,791.74 = 73,708.68 : x - Step 2: Convert to fraction form
130,279.08/179,791.74 = 73,708.68/x - Step 3: Cross multiply
130,279.08x = 179,791.74 × 73,708.68 - Step 4: Simplify right side
130,279.08x = 13,252,211,830.30 - Step 5: Solve for x
x = 13,252,211,830.30/130,279.08 - Step 6: Final answer
x = 101,721.72
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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.