Finding the Fourth Proportional to 121,702.77, 167,943.82 and 67,977.09
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Solution
The fourth proportional to 121,702.77, 167,943.82 and 67,977.09 is: 93,805.03
Step by Step Solution
- Step 1: Write the proportion equation
121,702.77 : 167,943.82 = 67,977.09 : x - Step 2: Convert to fraction form
121,702.77/167,943.82 = 67,977.09/x - Step 3: Cross multiply
121,702.77x = 167,943.82 × 67,977.09 - Step 4: Simplify right side
121,702.77x = 11,416,332,167.08 - Step 5: Solve for x
x = 11,416,332,167.08/121,702.77 - Step 6: Final answer
x = 93,805.03
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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.