Finding the Fourth Proportional to 125,171.23, 172,743.66 and 71,473.09
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Solution
The fourth proportional to 125,171.23, 172,743.66 and 71,473.09 is: 98,637.07
Step by Step Solution
- Step 1: Write the proportion equation
125,171.23 : 172,743.66 = 71,473.09 : x - Step 2: Convert to fraction form
125,171.23/172,743.66 = 71,473.09/x - Step 3: Cross multiply
125,171.23x = 172,743.66 × 71,473.09 - Step 4: Simplify right side
125,171.23x = 12,346,523,158.11 - Step 5: Solve for x
x = 12,346,523,158.11/125,171.23 - Step 6: Final answer
x = 98,637.07
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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.