Finding the Fourth Proportional to 111,618.23, 154,034.81 and 60,631.95
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Solution
The fourth proportional to 111,618.23, 154,034.81 and 60,631.95 is: 83,672.99
Step by Step Solution
- Step 1: Write the proportion equation
111,618.23 : 154,034.81 = 60,631.95 : x - Step 2: Convert to fraction form
111,618.23/154,034.81 = 60,631.95/x - Step 3: Cross multiply
111,618.23x = 154,034.81 × 60,631.95 - Step 4: Simplify right side
111,618.23x = 9,339,430,898.18 - Step 5: Solve for x
x = 9,339,430,898.18/111,618.23 - Step 6: Final answer
x = 83,672.99
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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.