Finding the Fourth Proportional to 138,844.83, 191,607.23 and 75,183.99
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Solution
The fourth proportional to 138,844.83, 191,607.23 and 75,183.99 is: 103,754.64
Step by Step Solution
- Step 1: Write the proportion equation
138,844.83 : 191,607.23 = 75,183.99 : x - Step 2: Convert to fraction form
138,844.83/191,607.23 = 75,183.99/x - Step 3: Cross multiply
138,844.83x = 191,607.23 × 75,183.99 - Step 4: Simplify right side
138,844.83x = 14,405,795,688.33 - Step 5: Solve for x
x = 14,405,795,688.33/138,844.83 - Step 6: Final answer
x = 103,754.64
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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.