Finding the Fourth Proportional to 125,187.69, 172,759.08 and 68,599.07
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Solution
The fourth proportional to 125,187.69, 172,759.08 and 68,599.07 is: 94,666.74
Step by Step Solution
- Step 1: Write the proportion equation
125,187.69 : 172,759.08 = 68,599.07 : x - Step 2: Convert to fraction form
125,187.69/172,759.08 = 68,599.07/x - Step 3: Cross multiply
125,187.69x = 172,759.08 × 68,599.07 - Step 4: Simplify right side
125,187.69x = 11,851,111,015.26 - Step 5: Solve for x
x = 11,851,111,015.26/125,187.69 - Step 6: Final answer
x = 94,666.74
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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.