Finding the Fourth Proportional to 156,415.26, 215,853.11 and 84,795.26
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Solution
The fourth proportional to 156,415.26, 215,853.11 and 84,795.26 is: 117,017.49
Step by Step Solution
- Step 1: Write the proportion equation
156,415.26 : 215,853.11 = 84,795.26 : x - Step 2: Convert to fraction form
156,415.26/215,853.11 = 84,795.26/x - Step 3: Cross multiply
156,415.26x = 215,853.11 × 84,795.26 - Step 4: Simplify right side
156,415.26x = 18,303,320,584.26 - Step 5: Solve for x
x = 18,303,320,584.26/156,415.26 - Step 6: Final answer
x = 117,017.49
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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.