Finding the Fourth Proportional to 125,722.97, 173,498.96 and 72,006.81
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Solution
The fourth proportional to 125,722.97, 173,498.96 and 72,006.81 is: 99,370.12
Step by Step Solution
- Step 1: Write the proportion equation
125,722.97 : 173,498.96 = 72,006.81 : x - Step 2: Convert to fraction form
125,722.97/173,498.96 = 72,006.81/x - Step 3: Cross multiply
125,722.97x = 173,498.96 × 72,006.81 - Step 4: Simplify right side
125,722.97x = 12,493,106,177.31 - Step 5: Solve for x
x = 12,493,106,177.31/125,722.97 - Step 6: Final answer
x = 99,370.12
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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.