Finding the Fourth Proportional to 125,383.88, 173,029.73 and 71,670.05
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Solution
The fourth proportional to 125,383.88, 173,029.73 and 71,670.05 is: 98,904.65
Step by Step Solution
- Step 1: Write the proportion equation
125,383.88 : 173,029.73 = 71,670.05 : x - Step 2: Convert to fraction form
125,383.88/173,029.73 = 71,670.05/x - Step 3: Cross multiply
125,383.88x = 173,029.73 × 71,670.05 - Step 4: Simplify right side
125,383.88x = 12,401,049,039.04 - Step 5: Solve for x
x = 12,401,049,039.04/125,383.88 - Step 6: Final answer
x = 98,904.65
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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.