Finding the Fourth Proportional to 138,657.63, 208,009.44 and 48,676.99
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Solution
The fourth proportional to 138,657.63, 208,009.44 and 48,676.99 is: 73,023.55
Step by Step Solution
- Step 1: Write the proportion equation
138,657.63 : 208,009.44 = 48,676.99 : x - Step 2: Convert to fraction form
138,657.63/208,009.44 = 48,676.99/x - Step 3: Cross multiply
138,657.63x = 208,009.44 × 48,676.99 - Step 4: Simplify right side
138,657.63x = 10,125,272,667.38 - Step 5: Solve for x
x = 10,125,272,667.38/138,657.63 - Step 6: Final answer
x = 73,023.55
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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.