Finding the Fourth Proportional to 137,180.09, 189,297.73 and 76,745.99
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Solution
The fourth proportional to 137,180.09, 189,297.73 and 76,745.99 is: 105,903.43
Step by Step Solution
- Step 1: Write the proportion equation
137,180.09 : 189,297.73 = 76,745.99 : x - Step 2: Convert to fraction form
137,180.09/189,297.73 = 76,745.99/x - Step 3: Cross multiply
137,180.09x = 189,297.73 × 76,745.99 - Step 4: Simplify right side
137,180.09x = 14,527,841,693.60 - Step 5: Solve for x
x = 14,527,841,693.60/137,180.09 - Step 6: Final answer
x = 105,903.43
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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.