Finding the Fourth Proportional to 107,698.87, 161,548.26 and 28,811.05
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Solution
The fourth proportional to 107,698.87, 161,548.26 and 28,811.05 is: 43,216.56
Step by Step Solution
- Step 1: Write the proportion equation
107,698.87 : 161,548.26 = 28,811.05 : x - Step 2: Convert to fraction form
107,698.87/161,548.26 = 28,811.05/x - Step 3: Cross multiply
107,698.87x = 161,548.26 × 28,811.05 - Step 4: Simplify right side
107,698.87x = 4,654,374,996.27 - Step 5: Solve for x
x = 4,654,374,996.27/107,698.87 - Step 6: Final answer
x = 43,216.56
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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.