Finding the Fourth Proportional to 100,166.99, 138,230.40 and 54,844.95
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Solution
The fourth proportional to 100,166.99, 138,230.40 and 54,844.95 is: 75,686.00
Step by Step Solution
- Step 1: Write the proportion equation
100,166.99 : 138,230.40 = 54,844.95 : x - Step 2: Convert to fraction form
100,166.99/138,230.40 = 54,844.95/x - Step 3: Cross multiply
100,166.99x = 138,230.40 × 54,844.95 - Step 4: Simplify right side
100,166.99x = 7,581,239,014.46 - Step 5: Solve for x
x = 7,581,239,014.46/100,166.99 - Step 6: Final answer
x = 75,686.00
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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.