Finding the Fourth Proportional to 151,313.51, 208,804.64 and 86,779.41
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Solution
The fourth proportional to 151,313.51, 208,804.64 and 86,779.41 is: 119,750.99
Step by Step Solution
- Step 1: Write the proportion equation
151,313.51 : 208,804.64 = 86,779.41 : x - Step 2: Convert to fraction form
151,313.51/208,804.64 = 86,779.41/x - Step 3: Cross multiply
151,313.51x = 208,804.64 × 86,779.41 - Step 4: Simplify right side
151,313.51x = 18,119,942,735.68 - Step 5: Solve for x
x = 18,119,942,735.68/151,313.51 - Step 6: Final answer
x = 119,750.99
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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.