Finding the Fourth Proportional to 121,118.97, 167,141.84 and 67,403.91
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Solution
The fourth proportional to 121,118.97, 167,141.84 and 67,403.91 is: 93,016.09
Step by Step Solution
- Step 1: Write the proportion equation
121,118.97 : 167,141.84 = 67,403.91 : x - Step 2: Convert to fraction form
121,118.97/167,141.84 = 67,403.91/x - Step 3: Cross multiply
121,118.97x = 167,141.84 × 67,403.91 - Step 4: Simplify right side
121,118.97x = 11,266,013,540.59 - Step 5: Solve for x
x = 11,266,013,540.59/121,118.97 - Step 6: Final answer
x = 93,016.09
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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.