Finding the Fourth Proportional to 125,121.13, 172,667.18 and 68,534.53
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Solution
The fourth proportional to 125,121.13, 172,667.18 and 68,534.53 is: 94,577.66
Step by Step Solution
- Step 1: Write the proportion equation
125,121.13 : 172,667.18 = 68,534.53 : x - Step 2: Convert to fraction form
125,121.13/172,667.18 = 68,534.53/x - Step 3: Cross multiply
125,121.13x = 172,667.18 × 68,534.53 - Step 4: Simplify right side
125,121.13x = 11,833,664,027.73 - Step 5: Solve for x
x = 11,833,664,027.73/125,121.13 - Step 6: Final answer
x = 94,577.66
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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.