Finding the Fourth Proportional to 109,716.99, 151,408.56 and 59,415.99
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Solution
The fourth proportional to 109,716.99, 151,408.56 and 59,415.99 is: 81,993.59
Step by Step Solution
- Step 1: Write the proportion equation
109,716.99 : 151,408.56 = 59,415.99 : x - Step 2: Convert to fraction form
109,716.99/151,408.56 = 59,415.99/x - Step 3: Cross multiply
109,716.99x = 151,408.56 × 59,415.99 - Step 4: Simplify right side
109,716.99x = 8,996,089,486.87 - Step 5: Solve for x
x = 8,996,089,486.87/109,716.99 - Step 6: Final answer
x = 81,993.59
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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.