Finding the Fourth Proportional to 121,584.23, 167,789.07 and 76,264.13
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Solution
The fourth proportional to 121,584.23, 167,789.07 and 76,264.13 is: 105,246.28
Step by Step Solution
- Step 1: Write the proportion equation
121,584.23 : 167,789.07 = 76,264.13 : x - Step 2: Convert to fraction form
121,584.23/167,789.07 = 76,264.13/x - Step 3: Cross multiply
121,584.23x = 167,789.07 × 76,264.13 - Step 4: Simplify right side
121,584.23x = 12,796,287,447.06 - Step 5: Solve for x
x = 12,796,287,447.06/121,584.23 - Step 6: Final answer
x = 105,246.28
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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.