Finding the Fourth Proportional to 189,090.99, 260,945.61 and 103,049.99
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Solution
The fourth proportional to 189,090.99, 260,945.61 and 103,049.99 is: 142,209.01
Step by Step Solution
- Step 1: Write the proportion equation
189,090.99 : 260,945.61 = 103,049.99 : x - Step 2: Convert to fraction form
189,090.99/260,945.61 = 103,049.99/x - Step 3: Cross multiply
189,090.99x = 260,945.61 × 103,049.99 - Step 4: Simplify right side
189,090.99x = 26,890,442,522.33 - Step 5: Solve for x
x = 26,890,442,522.33/189,090.99 - Step 6: Final answer
x = 142,209.01
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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.