Finding the Fourth Proportional to 103,236.24, 154,749.80 and 69,959.68
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Solution
The fourth proportional to 103,236.24, 154,749.80 and 69,959.68 is: 104,868.66
Step by Step Solution
- Step 1: Write the proportion equation
103,236.24 : 154,749.80 = 69,959.68 : x - Step 2: Convert to fraction form
103,236.24/154,749.80 = 69,959.68/x - Step 3: Cross multiply
103,236.24x = 154,749.80 × 69,959.68 - Step 4: Simplify right side
103,236.24x = 10,826,246,488.06 - Step 5: Solve for x
x = 10,826,246,488.06/103,236.24 - Step 6: Final answer
x = 104,868.66
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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.