Finding the Fourth Proportional to 115,575.06, 159,496.74 and 65,274.06
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Solution
The fourth proportional to 115,575.06, 159,496.74 and 65,274.06 is: 90,079.99
Step by Step Solution
- Step 1: Write the proportion equation
115,575.06 : 159,496.74 = 65,274.06 : x - Step 2: Convert to fraction form
115,575.06/159,496.74 = 65,274.06/x - Step 3: Cross multiply
115,575.06x = 159,496.74 × 65,274.06 - Step 4: Simplify right side
115,575.06x = 10,410,999,776.56 - Step 5: Solve for x
x = 10,410,999,776.56/115,575.06 - Step 6: Final answer
x = 90,079.99
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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.