Finding the Fourth Proportional to 125,403.48, 173,116.34 and 79,486.07
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Solution
The fourth proportional to 125,403.48, 173,116.34 and 79,486.07 is: 109,728.51
Step by Step Solution
- Step 1: Write the proportion equation
125,403.48 : 173,116.34 = 79,486.07 : x - Step 2: Convert to fraction form
125,403.48/173,116.34 = 79,486.07/x - Step 3: Cross multiply
125,403.48x = 173,116.34 × 79,486.07 - Step 4: Simplify right side
125,403.48x = 13,760,336,554.44 - Step 5: Solve for x
x = 13,760,336,554.44/125,403.48 - Step 6: Final answer
x = 109,728.51
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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.