Finding the Fourth Proportional to 163,749.63, 225,975.42 and 92,130.87
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Solution
The fourth proportional to 163,749.63, 225,975.42 and 92,130.87 is: 127,141.12
Step by Step Solution
- Step 1: Write the proportion equation
163,749.63 : 225,975.42 = 92,130.87 : x - Step 2: Convert to fraction form
163,749.63/225,975.42 = 92,130.87/x - Step 3: Cross multiply
163,749.63x = 225,975.42 × 92,130.87 - Step 4: Simplify right side
163,749.63x = 20,819,312,043.22 - Step 5: Solve for x
x = 20,819,312,043.22/163,749.63 - Step 6: Final answer
x = 127,141.12
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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.