Finding the Fourth Proportional to 125,130.36, 172,679.97 and 68,542.68
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Solution
The fourth proportional to 125,130.36, 172,679.97 and 68,542.68 is: 94,588.94
Step by Step Solution
- Step 1: Write the proportion equation
125,130.36 : 172,679.97 = 68,542.68 : x - Step 2: Convert to fraction form
125,130.36/172,679.97 = 68,542.68/x - Step 3: Cross multiply
125,130.36x = 172,679.97 × 68,542.68 - Step 4: Simplify right side
125,130.36x = 11,835,947,926.12 - Step 5: Solve for x
x = 11,835,947,926.12/125,130.36 - Step 6: Final answer
x = 94,588.94
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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.