Finding the Fourth Proportional to 129,625.13, 178,882.70 and 70,009.13
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Solution
The fourth proportional to 129,625.13, 178,882.70 and 70,009.13 is: 96,612.61
Step by Step Solution
- Step 1: Write the proportion equation
129,625.13 : 178,882.70 = 70,009.13 : x - Step 2: Convert to fraction form
129,625.13/178,882.70 = 70,009.13/x - Step 3: Cross multiply
129,625.13x = 178,882.70 × 70,009.13 - Step 4: Simplify right side
129,625.13x = 12,523,422,199.05 - Step 5: Solve for x
x = 12,523,422,199.05/129,625.13 - Step 6: Final answer
x = 96,612.61
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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.