Finding the Fourth Proportional to 125,368.07, 172,965.86 and 71,615.03
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Solution
The fourth proportional to 125,368.07, 172,965.86 and 71,615.03 is: 98,804.70
Step by Step Solution
- Step 1: Write the proportion equation
125,368.07 : 172,965.86 = 71,615.03 : x - Step 2: Convert to fraction form
125,368.07/172,965.86 = 71,615.03/x - Step 3: Cross multiply
125,368.07x = 172,965.86 × 71,615.03 - Step 4: Simplify right side
125,368.07x = 12,386,954,029.97 - Step 5: Solve for x
x = 12,386,954,029.97/125,368.07 - Step 6: Final answer
x = 98,804.70
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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.