Finding the Fourth Proportional to 115,632.24, 159,621.68 and 70,324.78
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Solution
The fourth proportional to 115,632.24, 159,621.68 and 70,324.78 is: 97,078.11
Step by Step Solution
- Step 1: Write the proportion equation
115,632.24 : 159,621.68 = 70,324.78 : x - Step 2: Convert to fraction form
115,632.24/159,621.68 = 70,324.78/x - Step 3: Cross multiply
115,632.24x = 159,621.68 × 70,324.78 - Step 4: Simplify right side
115,632.24x = 11,225,359,529.23 - Step 5: Solve for x
x = 11,225,359,529.23/115,632.24 - Step 6: Final answer
x = 97,078.11
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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.