Finding the Fourth Proportional to 121,774.97, 167,940.27 and 101,424.59
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Solution
The fourth proportional to 121,774.97, 167,940.27 and 101,424.59 is: 139,874.99
Step by Step Solution
- Step 1: Write the proportion equation
121,774.97 : 167,940.27 = 101,424.59 : x - Step 2: Convert to fraction form
121,774.97/167,940.27 = 101,424.59/x - Step 3: Cross multiply
121,774.97x = 167,940.27 × 101,424.59 - Step 4: Simplify right side
121,774.97x = 17,033,273,029.24 - Step 5: Solve for x
x = 17,033,273,029.24/121,774.97 - Step 6: Final answer
x = 139,874.99
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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.