Finding the Fourth Proportional to 121,560.91, 167,553.26 and 81,259.97
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Solution
The fourth proportional to 121,560.91, 167,553.26 and 81,259.97 is: 112,004.52
Step by Step Solution
- Step 1: Write the proportion equation
121,560.91 : 167,553.26 = 81,259.97 : x - Step 2: Convert to fraction form
121,560.91/167,553.26 = 81,259.97/x - Step 3: Cross multiply
121,560.91x = 167,553.26 × 81,259.97 - Step 4: Simplify right side
121,560.91x = 13,615,371,636.94 - Step 5: Solve for x
x = 13,615,371,636.94/121,560.91 - Step 6: Final answer
x = 112,004.52
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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.