Finding the Fourth Proportional to 134,018.28, 201,990.73 and 115,521.56
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Solution
The fourth proportional to 134,018.28, 201,990.73 and 115,521.56 is: 174,112.70
Step by Step Solution
- Step 1: Write the proportion equation
134,018.28 : 201,990.73 = 115,521.56 : x - Step 2: Convert to fraction form
134,018.28/201,990.73 = 115,521.56/x - Step 3: Cross multiply
134,018.28x = 201,990.73 × 115,521.56 - Step 4: Simplify right side
134,018.28x = 23,334,283,369.59 - Step 5: Solve for x
x = 23,334,283,369.59/134,018.28 - Step 6: Final answer
x = 174,112.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.