Finding the Fourth Proportional to 189,090.96, 260,945.58 and 103,049.97
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Solution
The fourth proportional to 189,090.96, 260,945.58 and 103,049.97 is: 142,208.99
Step by Step Solution
- Step 1: Write the proportion equation
189,090.96 : 260,945.58 = 103,049.97 : x - Step 2: Convert to fraction form
189,090.96/260,945.58 = 103,049.97/x - Step 3: Cross multiply
189,090.96x = 260,945.58 × 103,049.97 - Step 4: Simplify right side
189,090.96x = 26,890,434,190.63 - Step 5: Solve for x
x = 26,890,434,190.63/189,090.96 - Step 6: Final answer
x = 142,208.99
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1.5x scale
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.