Finding the Fourth Proportional to 115,919.28, 174,034.44 and 68,621.76
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Solution
The fourth proportional to 115,919.28, 174,034.44 and 68,621.76 is: 103,024.70
Step by Step Solution
- Step 1: Write the proportion equation
115,919.28 : 174,034.44 = 68,621.76 : x - Step 2: Convert to fraction form
115,919.28/174,034.44 = 68,621.76/x - Step 3: Cross multiply
115,919.28x = 174,034.44 × 68,621.76 - Step 4: Simplify right side
115,919.28x = 11,942,549,573.41 - Step 5: Solve for x
x = 11,942,549,573.41/115,919.28 - Step 6: Final answer
x = 103,024.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.