Finding the Fourth Proportional to 157,174.24, 216,928.56 and 100,583.68
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Solution
The fourth proportional to 157,174.24, 216,928.56 and 100,583.68 is: 138,823.47
Step by Step Solution
- Step 1: Write the proportion equation
157,174.24 : 216,928.56 = 100,583.68 : x - Step 2: Convert to fraction form
157,174.24/216,928.56 = 100,583.68/x - Step 3: Cross multiply
157,174.24x = 216,928.56 × 100,583.68 - Step 4: Simplify right side
157,174.24x = 21,819,472,861.90 - Step 5: Solve for x
x = 21,819,472,861.90/157,174.24 - Step 6: Final answer
x = 138,823.47
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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.