Finding the Fourth Proportional to 125,040.25, 172,555.68 and 68,451.76
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Solution
The fourth proportional to 125,040.25, 172,555.68 and 68,451.76 is: 94,463.50
Step by Step Solution
- Step 1: Write the proportion equation
125,040.25 : 172,555.68 = 68,451.76 : x - Step 2: Convert to fraction form
125,040.25/172,555.68 = 68,451.76/x - Step 3: Cross multiply
125,040.25x = 172,555.68 × 68,451.76 - Step 4: Simplify right side
125,040.25x = 11,811,739,994.00 - Step 5: Solve for x
x = 11,811,739,994.00/125,040.25 - Step 6: Final answer
x = 94,463.50
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1.5x scale
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.