Finding the Fourth Proportional to 138,853.08, 208,112.68 and 63,869.92
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Solution
The fourth proportional to 138,853.08, 208,112.68 and 63,869.92 is: 95,728.09
Step by Step Solution
- Step 1: Write the proportion equation
138,853.08 : 208,112.68 = 63,869.92 : x - Step 2: Convert to fraction form
138,853.08/208,112.68 = 63,869.92/x - Step 3: Cross multiply
138,853.08x = 208,112.68 × 63,869.92 - Step 4: Simplify right side
138,853.08x = 13,292,140,222.59 - Step 5: Solve for x
x = 13,292,140,222.59/138,853.08 - Step 6: Final answer
x = 95,728.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.