Finding the Fourth Proportional to 134,897.34, 186,180.84 and 128,918.46
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Solution
The fourth proportional to 134,897.34, 186,180.84 and 128,918.46 is: 177,928.99
Step by Step Solution
- Step 1: Write the proportion equation
134,897.34 : 186,180.84 = 128,918.46 : x - Step 2: Convert to fraction form
134,897.34/186,180.84 = 128,918.46/x - Step 3: Cross multiply
134,897.34x = 186,180.84 × 128,918.46 - Step 4: Simplify right side
134,897.34x = 24,002,147,174.31 - Step 5: Solve for x
x = 24,002,147,174.31/134,897.34 - Step 6: Final answer
x = 177,928.99
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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.