Finding the Fourth Proportional to 115,121.28, 158,869.44 and 64,822.08
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Solution
The fourth proportional to 115,121.28, 158,869.44 and 64,822.08 is: 89,455.64
Step by Step Solution
- Step 1: Write the proportion equation
115,121.28 : 158,869.44 = 64,822.08 : x - Step 2: Convert to fraction form
115,121.28/158,869.44 = 64,822.08/x - Step 3: Cross multiply
115,121.28x = 158,869.44 × 64,822.08 - Step 4: Simplify right side
115,121.28x = 10,298,247,549.24 - Step 5: Solve for x
x = 10,298,247,549.24/115,121.28 - Step 6: Final answer
x = 89,455.64
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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.