Finding the Fourth Proportional to 157,804.08, 217,770.84 and 86,182.80
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Solution
The fourth proportional to 157,804.08, 217,770.84 and 86,182.80 is: 118,932.92
Step by Step Solution
- Step 1: Write the proportion equation
157,804.08 : 217,770.84 = 86,182.80 : x - Step 2: Convert to fraction form
157,804.08/217,770.84 = 86,182.80/x - Step 3: Cross multiply
157,804.08x = 217,770.84 × 86,182.80 - Step 4: Simplify right side
157,804.08x = 18,768,100,749.55 - Step 5: Solve for x
x = 18,768,100,749.55/157,804.08 - Step 6: Final answer
x = 118,932.92
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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.